Full opinion text
WEICK, Chief Judge. Appellants were found guilty by a jury in the District Court on charges of wil-fully endeavoring to influence, intimidate and impede petit jurors in the discharge of their duties, in violation of 18 U.S.C. § 1503. The petit jurors had been summoned for jury service in the trial of United States of America v. James R. Hoffa and Commercial Carriers, Inc. (Criminal Case No. 13,241) in the United States District Court for the Middle District of Tennessee, Nashville Division. The latter case has been referred to as the Test-Fleet case, and involved a two count information charging violation of the Taft-Hartley Act (29 U.S.C. § 186). It was tried before District Judge William E. Miller of Nashville. The unlawful endeavors which the Government’s evidence tended to prove consisted of contacts through intermediaries with acquaintances, friends or relatives of two of the petit jurors and one venireman in an effort to influence their votes by bribery. Venireman James C. Tip-pens reported to the trial judge on the second day of the trial that his neighbor, Lawrence Medlin, had offered him $10,-000. in $100. bills to influence his vote. Judge Miller excused Tippens from the jury. The Government’s evidence tended to prove that endeavors were made to bribe the son of juror Gratín Fields for the purpose of influencing his father; that contact was made with the juror’s daughter for the same purpose; that contacts were made with Tennesee State Patrolman James Paschal, husband of juror, Mrs. James Paschal; that promises were made to Patrolman Paschal to obtain a promotion for him if he would influence his wife’s vote as a juror. When these efforts were reported to District Judge Miller he excused jurors Fields and Paschal and filled their places with alternate jurors. The trial of the Test-Fleet case lasted for about two months. It resulted in a “hung jury.” Judge Miller then ordered that a grand jury be convened to investigate the attempts to influence the petit jurors, which resulted in the five count indictment in the present case. After entering the order, Judge Miller recused himself from further consideration of the case. District Judge Frank Gray, Jr., of Nashville, heard a number of preliminary matters, after which he recused himself and the case was assigned for trial to District Judge Frank Wilson. Judge Wilson transferred the case for trial from Nashville to Chattanooga. It lasted six and one-half weeks. The record and exhibits in this case are voluminous. Almost every question which the ingenuity of counsel could think of, was raised in the trial court. In this Court Appellants have presented sixteen questions, subdivided into thirty-six parts. Counsel for both parties were granted leave to file briefs much longer than authorized by our rules. Each side was allowed two hours for oral arguments. Was the Grand Jury Improperly and Illegally Impaneled? A motion to dismiss the indictment was filed by Appellant Hoifa and later joined in by the other Appellants in the District Court, in which it was claimed that the grand jury did not represent a fair cross-section of the community; that the Jury Commissioner and the Clerk had delegated to other persons their duty to select the names for the jury box; and that the names in the jury box from which the grand jury was selected had been suggested substantially by United States officials, United States Postmasters, state officials, bankers and employers, resulting in a substantial discrimination against the defendants. Certain exhibits were attached to the motion, sociological values and attitudes of the purporting to show the names, addresses and description of the economic and suggesters. On the day set for the hearing, Hoffa filed an Offer of Proof stating, among other things, that officers and officials of federally supervised banks and Postmasters serving the Middle District of Tennessee are, as a class, biased and prejudiced against Negroes, Jews, Catholics and manual or blue collar workers, and would not knowingly submit their names for jury service; that bankers, as a class, are also biased and prejudiced against persons not prompt in the payment of their bills, against persons taking any active part in the political or civic life of their communities, and against persons having reputations as liberals or pro-gessives. Neither the motion nor the offer of proof were verified. Neither stated in what manner nor by what means these charges would be proved. Affidavits were filed by the Clerk of the District Court and the Jury Commissioner. It appeared therefrom that the “Suggester System,” also referred to as “Key Men System,” was used to procure names for the grand jury. The Clerk sent a letter to various persons residing in the counties composing the Middle District of Tennessee. The Clerk’s affidavit stated how the suggesters were chosen. The Jury Commissioner’s affidavit stated that he had written for names of qualified jurors to the Jury Commissioners for the Columbia and Cookeville Divisions of the Middle District of Tennessee. In addition he wrote a letter, identical in form to the letters sent by the Clerk, to a citizen residing in each of the twelve counties of the Nashville Division, excluding Wilson and Davidson Counties, requesting the names of persons from all walks of life, to serve as jurors. Males and females were included in the list. Many of the suggesters were known to him personally, and many others were known to him by reputation. Upon receiving the lists he reviewed them and compiled the list of names to be placed in the jury box. He added fifteen or twenty names of persons residing in Wilson County, who he knew were qualified. He met with the Clerk. Each alternated in placing one name at a time in the jury box until there were four hundred names in the box. They drew one hundred names from the box, from which they selected twenty-three persons, who made up the grand jury. Prior to the hearing District Judge Frank Gray, Jr. entered an order establishing the sequence of issues to be heard on the motion: “1. Whether a suggester system for the selection of prospective grand jurors is invalid, per se, so as to invalidate actions of a grand jury so selected. “2. Whether a sufficient showing has been made to authorize an inquiry whether the manner in which the suggester system was used in selecting the present grand jury was such as to invalidate the indictment. “3. Whether the court failed to take proper precautions against seating grand jurors who may have been influenced by publicity, and, if so, whether the indictment is thereby invalidated. “4. Whether a sufficient showing has been made to authorize an inquiry as to whether the grand jury was biased and prejudiced by publicity.” The defense subpoenaed the Clerk, the Jury Commissioner and seventy-seven of the ninety-two suggesters listed in their exhibit. At the hearing the Court heard oral arguments from counsel for each defendant and for the Government. The Court called attention to his previous order and sought time after time to elicit from defense counsel proffers of proof as to the names of witnesses and what their testimony would be in support of the charges contained in the motion. In this effort the Court was unsuccessful. The most that could be secured was the statement of counsel that the proof would come from the testimony of the Clerk, the Jury Commissioner, and the seventy-seven suggesters. Defense counsel had talked to only one suggester at that time. The Court would not permit’their interrogation because the defense had not established the necessary foundation therefor. The Court did permit proof to be offered on the charge that the Clerk had placed in the jury box the name of a man of Jewish faith, knowing that he was represented by defense counsel Osborn and would likely be challenged for cause. The evidence disclosed that this charge was wholly without merit. The Clerk did not know that the prospective juror was represented by Mr. Osborn. The Suggester or Key Men System has been in extensive use in many of the Circuits. The use of the system was approved by the Supreme Court in Scales v. United States, 367 U.S. 203, 259, 81 S.Ct. 1469, 6 L.Ed.2d 782 (1961) affirming 260 F.2d 21, 44-46 (C.A.4, 1958), and by other Courts. Padgett v. Buxton-Smith Mercantile Co., 283 F.2d 597 (C.A. 10, 1960) cert. denied 365 U.S. 828, 81 S. Ct. 713, 5 L.Ed.2d 705 (1961); Windom v. United States, 260 F.2d 384 (C.A.10, 1958); Walker v. United States, 93 F.2d 383 (C.A.8, 1937) cert. denied 303 U.S. 644, 58 S.Ct. 642, 82 L.Ed. 1103 (1938); United States v. Hoffa, 205 F.Supp. 710 (S.D.Fla., 1962); United States v. McClure, 4 F.Supp. 668 (E.D.Pa., 1938). The use of suggesters does not constitute a delegation of authority. Walker v. United States, supra. While the purpose of using suggesters was to obtain an impartial jury drawn from the names of persons representing a cross-section of the community, we know of no requirement that the suggesters themselves be selected on such a basis. Nor is it necessary that every jury contain representatives of all the various classes and groups in the community. But prospective jurors shall be selected without systematic and intentional exclusion of any of the groups. The means whereby this may be accomplished rests within the sound discretion of the courts and their officers guided by statutory provisions. Thiel v. Southern Pacific Co., 328 U.S. 217, 66 S.Ct. 984, 90 L.Ed. 1181 (1946). Although we think it would have been good practice to send questionnaires to the prospective grand jurors inquiring as to their qualifications, the failure to do so in our judgment did not invalidate the panel. The Clerk and Jury Commissioner remained in control. They reviewed the lists submitted by the suggesters and placed additional names in the box. There was no proof offered that any of the grand jurors chosen did not possess the statutory qualifications. In the Report of the Judicial Conference Committee on the operation of the Jury System, it is stated: “The key-man system is the most widely used and if the key-men are selected with discretion and a view of securing diversification, it is productive of generally good results. Periodic letters to the key-men keep the lists coming in so that there is a constant supply of new names being added. A sample of such a letter asking for a list is attached to Exhibit 3. The jury commissioners may or may not use the same methods as the clerks.” 26 F.R.D. 409, 470. The courts will not permit a full scale investigation to be made of its jury panel until it is suspect. If this were not so the trial of a criminal case could be diverted by unsupported charges. Court officials, jurors, suggesters and other persons could be subjected to lengthy and needless inquisitions which in the future might deter them from rendering effective service to the courts. In Windom v. United States, supra, Judge Murrah said at page 385: “But the burden of making a showing that some class was improperly excluded from the jury lies with the defense. Frazier v. United States, 335 U.S. 497, 69 S.Ct. 201, 93 L.Ed. 187. We will not presume that the key persons did not follow instructions to recommend persons who are fairly representative of the whole population of their communities. Surely, some showing of a disposition to discriminate is prerequisite to a searching investigation. The court should not be required to permit a full scale investigation of its jury panel until it is suspect.” To the same effect are Padgett v. Buxton-Smith Mercantile Co., supra; cf. Poliafico v. United States, 237 F.2d 97, 110 (C.A. 6,1956) cert. denied 352 U.S. 1025, 77 S.Ct. 590, 1 L.Ed.2d 597; United States v. Romano, 191 F.Supp. 772, 775-776 (D., Conn.1961). Distinct evidence in support of the motion must be offered. Glasser v. United States, 315 U.S. 60, 87, 62 S.Ct. 457, 86 L.Ed. 680 (1942). The evidence must be more than mere statements of counsel of what they hope they will be able to prove. Frazier v. United States, 335 U.S. 497, 503, 69 S.Ct. 201 (1948). Appellants argue that the suggester system produced exclusions; that the names of only four Negroes and two Catholics were placed in the jury box when there should have been twenty-five Negroes and Catholics to give them proportionate representation according to Census figures; that there were not enough blue collar wage earners; and that the names of only thirteen women were drawn, which were insufficient. The Court found that the list of prospective grand jurors actually contained the names of all the classes claimed to have been excluded. This certainly does not prove systematic exclusion of cognizable elements in the community. It is not required that there be a proportionate representation in the grand jury panel of all classes and religions. It is doubtful whether any system could be devised to accomplish this purpose. Swain v. State of Alabama, 380 U.S. 202, 85 S.Ct. 824, 13 L.Ed.2d 759 (1965); Hernandez v. State of Texas, 347 U.S. 475, 482, 74 S.Ct. 667, 98 L.Ed. 866 (1954); Cassell v. State of Texas, 339 U.S. 282, 286-287, 70 S.Ct. 629, 94 L.Ed. 839 (1950); Fay v. People of State of New York, 332 U.S. 261, 284-285, 291, 67 S.Ct. 1613, 91 L.Ed. 2043 (1947); Akins v. State of Texas, 325 U.S. 398, 403-404, 65 S.Ct. 1276, 89 L.Ed. 1692 (1945); Padgett v. Buxton-Smith Mercantile Co., supra; United States v. Fujimoto, 102 F.Supp. 890, 894-895 (D.Haw. 1952). It should be pointed out that Appellants’ analysis pertained only to the one hundred names drawn, and not to the other three hundred names placed in the jury box; that the data contained in the analysis resulted from neighborhood inquiry ; that there were eight panel members whose races were not disclosed; and that there were three panel members whose religious preferences were not ascertained. Without going into other discrepancies, we are of the opinion that the analysis falls far short of making the requisite showing to require a full scale investigation. Nearly five months later (December 16, 1963) a delayed motion for rehearing was filed by Appellant Campbell, substantially joined in by Hoff a, to which were attached affidavits of three investigators, Polk, McMackin and Ziegler, who had interviewed a number of suggesters in September, 1963. It has not been explained why the filing of the motion for rehearing was delayed. These affidavits, together with the Government's cross-examination of the investigators in related cases involving the same grand jury, were received in evidence by stipulation. In the light of the cross-examination, the affidavits of the investigators appear to be misleading. The four suggesters interviewed by Polk told him that in every case they followed the instructions contained in the letter from the Clerk or Jury Commissioner. While Polk stated in his affidavit that these suggesters gave some evidence as to bias against Negroes, they all told him that prejudice played no part in the performance of their duties as suggesters. McMackin interviewed seventeen suggesters. Nine out of twelve suggesters sent in the names of one or more Negroes. Three told him they did not. A couple told him they did not remember. One told him it was none of his business. As to the remainder, he did not know whether they did or did not. On instructions from defense counsel he did not interview any of the suggesters from the Nashville area (Davidson County) where more than sixty-one per cent of the non-White population of the Middle District of Tennessee over twenty-one years of age reside, and where several Negroes serve as suggesters. The investigation was restricted to other counties in the Middle District in which only eight per cent of the total population over twenty-one years of age, consisted of non-White. Ziegler interviewed nineteen suggesters. One refused to comment. Five told him that they had secured a cross-section of the community in which they resided. As to whether the suggesters returned names of Negroes on their lists, six out of twelve answered ‘yes’; six answered ‘no’. The other five thought they returned names of Negroes, or didn’t remember. In most instances they answered that they considered that they had secured a fair cross-section of the community. They were personally acquainted with the persons selected. In our judgment District Judge Wilson was justified in denying the delayed motion. Supreme Court cases have indicated methods used to establish discrimination in the selection of jurors and to make out a prima facie case. In Hill v. State of Texas, 316 U.S. 400, 403, 62 S.Ct. 1159, 86 L.Ed. 1559 (1942) an assistant district attorney for the county, who had lived in Dallas County for twenty-seven or twenty-eight years and served for sixteen years as a judge in the criminal court in which Hill was convicted, testified that he never knew of a Negro being called to serve on the grand jury. The district clerk knew of no citations issued for Negroes to serve on the grand jury. Three colored witnesses, who had lived in the county from twenty-five to fifty years, testified that they had never known of a Negro being called to serve on a grand jury. Of 66,000 poll tax payers in the county, 8,000 were Negroes. ' See Arnold v. North Carolina, 376 U. S. 773, 84 S.Ct. 1032, 12 L.Ed.2d 77 (1964), where only one Negro served on grand jury in twenty-four years, although Negroes comprised twenty-eight per cent of persons on the tax records. In both of the cited cases the Supreme Court held that a prima facie case was made. No such proof as to discrimination was proffered in the present case. It seems to us that if there had existed such an outrageous discrimination against Negroes, Catholics, Jews, blue collar workers, community civic leaders and liberals or progressives as was claimed by the defense, it would have been easy to show it in a place as heavily populated as the Middle District. Not one Negro, Catholic, Jew, working man, union leader, or other alleged discriminatee, was called as a witness. Instead the defense wanted to engage in a fishing expedition by calling seventy-seven suggesters with whom they had no contacts at the time, with only one exception. Had evidence been proffered as to discrimination against any cognizable group, a prima facie case might have been made requiring the Government to go forward with rebuttal, and justifying a full scale investigation by the court. Hernandez v. Texas, supra. Until then the list was not suspect. Appellants further contend that Judge Gray in his voir dire examination of the grand jurors made no effort to determine if the members were biased against any of the defendants. The record does not support this contention. The Court made a preliminary statement to the veniremen. The Court then read to the prospective grand jurors the oath which they would be required to take. He asked the questions set forth in the footnote. After excusing one prospective juror because he might have difficulty making an independent determination since he was acquainted with persons involved in newspaper publicity, the jury was sworn. In our judgment the voir dire inquiry was sufficient. It was not necessary that the Court furnish the jurors with the names of each person who might be investigated and direct specific inquiries as to bias and prejudice against him. Did the Trial Court Err in Denying the Motion to Suppress the Evidence of Edward G. Partin? Partin was Secretary-Treasurer and Business Manager of Teamsters’ Local No. 5 in Baton Rouge, Louisiana. He had held that position for twelve years. He had known Hoifa closely for about five years. The evidence sought to be suppressed was the testimony of Partin at the trial which was directed chiefly at implicating Hoifa and Appellant King with the endeavors to bribe the jurors in the Test-Fleet case. Partin testified, over the objections of the defendants, as to conversations with Hoifa in the latter’s hotel room in Nashville, at the start of and during the pend-ency of the trial of that case, and also as to conversations with Appellant King. No one else was present during these conversations. The gist of Partin’s testimony was as follows: On the day before the trial started, Appellant King told Partin that there was “a meeting set up on the jury that night”. Partin did not go to the meeting. On that evening Hoifa motioned to Partin to come to his room. Partin testified : “He [Hoifa] told me he’d like for me to stick around a day or two, that he might have one or two people for me to call. He said they was going to get one juror or try to get a few scattered jurors and take their chances.” Before leaving Nashville for Baton Rouge, on October 23rd, Hoifa told Par-tin that when he returned he might want him “to pass something for him”. Hoifa put ■ his hand behind his back and hit his rear pocket. Partin returned to Nashville on October 25th and reminded Hoffa that he might want him to pass something for him. Hoffa replied: “The dirty bastards went in and told the Judge that his neighbor had offered him $10,000. We are going to have to lay low for a few days.” Partin had conversations with Appellant King on October 26th in which King informed him that one of the lady jurors was married to a highway patrolman, whom he would endeavor to contact. King said that he was acquainted with a friend of the juror and would try to have the friend talk to her “to get her swayed toward Mr. Hoffa”. King said “that the patrolman and his wife had money, but they loved money and $10,-000 was a lot of money”. King told Par-tin that he intended to circulate in the neighborhood where the highway patrolmen hung out and “see if they knew anyone on the jury that they could get to”. King told Partin that the closest person to the highway patrolman was deer hunting in Montana. On October 29th Hoffa requested Par-tin to telephone Billy Wade, an All-American football player from Nashville, “to come into town and circulate around and see if he knew anyone he could get to on the jury, and to come into the court room and shake hands and mix up with the defendants”. Partin was unable to reach Wade. On that same day Hoffa told Partin, “I would pay $15,000 or $20,-' 000, whatever it costs, to get to the jury”. On October 30th King pointed out to Partin a woman sitting in the courtroom, and said she was to speak to juror Mrs. Paschal. On November 4th Partin met Hoffa and King in a hallway of the hotel. Hoffa told Partin he was “raising Cain at King, said he wasn’t doing what he told him to do”. He said that “King keeps telling me he can get the patrolman but he don’t get to him”, and that “He keeps talking about it and fumbling around”. Later King told Partin that he thought the highway patrolman would go along and that he had arranged to meet him the following Sunday at midnight at a spring behind a farm. There was no such meeting held that Sunday. On November 7th Hoffa told Partin: “I have got the colored male juror [Fields] in my hip pocket. One of my business agents Campbell came into Nashville prior to the trial and took care of it.” He said the juror would not take any money but would not “go against his own people”. Hoffa said: “Our best bet is a hung jury unless we can get to the foreman of the jury. If they have a hung jury, it will be the same as an acquittal because they will never try the case again.” On November 14th Partin was present during a conversation between Hoffa and King. He said Hoffa was on King again about not making a contact like King told him he would and Hoffa “wanted some insurance”. On the same day King told Partin that he was planning to meet the patrolman (Paschal). Partin heard Hoffa call King “a stupid s.o.b. for thumbing around and not getting the job done”. On the following day Partin discussed with King “the contacts to be made with the patrolman”. On November 19th King related to Hoffa the details concerning his meeting with Paschal. On the same day Hoffa told Partin he “was disturbed because the Highway Patrolman wouldn’t take the money * * * if he had taken the money it would have pinned him down and he couldn’t have backed up”. The ground of the motion to suppress was that the Government had planted an informer (Partin) in the midst of the defendants and their counsel, which interfered with their rights to the effective assistance of counsel in the Test-Fleet case, and was in violation of the Fourth, Fifth and Sixth Amendments to the Constitution. The District Judge conducted an extensive hearing on the motion in the absence of the jury, at which a number of witnesses testified. The witnesses called by the defense included Partin, the attorneys for the Government, a special Assistant to the Attorney General, the District Attorney for the Ninth Judicial District in Louisiana, and his Administrative Assistant, and a number of the attorneys who represented Hoffa in the Test-Fleet case. ■At the conclusion of the hearing the Court adopted findings of fact and denied the motion to suppress the evidence. These findings were supplemented in the Court’s memorandum denying the motion for a new trial. In substance, the Court found from the evidence that the Government did not place Partin in the midst of the defendants, but that he was there by invitation of one of the defendants (Hoffa). The Court further found that there was no interference with the attorney-client relationship of any defendant in the case. The evidence at the hearing on the motion to suppress, disclosed that shortly before the trial of the Test-Fleet case Partin was in the East Baton Rouge Parish jail on a state kidnapping charge. The charge grew out of a family quarrel in which Partin assisted a friend, who was the father, in kidnapping his own children from his separated wife. While in jail Partin requested a meeting with the state prosecuting officials. He met with Daniels, the Administrative Assistant to State District Attorney Pitcher, and later with Pitcher, Daniels, Duffy, an Assistant U. S. District Attorney, and Grimsley, an attorney in the Criminal Division of the Department of Justice. Partin informed them of an alleged plot by Hoffa to murder Robert F. Kennedy, then Attorney General of the United States. At this meeting Pitcher told Partin that if the kidnapped children were returned unharmed he would become eligible for bond, but so long as the children were held his offense was non-bailable under Louisiana law. Shortly thereafter the children were returned unharmed and Partin was released on $5,-000 bail. After his release on bail, Partin met with Daniels at the Holiday Inn in Baton Rouge. Daniels was conducting an investigation as a state law enforcement officer. He had not been asked to do so by the Federal Government. Partin placed a number of telephone calls to different people and recorded some of them on a recording device furnished by Daniels.' He recorded a call to Hoffa in Washington, in which Partin requested a meeting with Hoffa, and another one to Hoffa in New Jersey, in which Hoffa agreed to meet Partin at the hotel in Nashville where Hoffa intended to stay during the trial. These recorded telephone calls were offered in evidence by the defense. Grimsley did not ask Partin to call Hoffa. A few days thereafter Partin met with Grimsley, the Department of Justice attorney, and Daniels in Atlanta. After discussing other matters not pertaining to this case, Grimsley asked Partin if he intended to meet with Hoffa in Nashville. Upon being advised of the appointment, Grimsley asked Partin to keep his ears and eyes open and to report any attempts at witness intimidation or jury tampering, either to Grimsley or to Walter Sheridan, a Special Consultant to the Attorney General. Grimsley gave Par-tin Sheridan’s Nashville telephone number. During the Test-Fleet trial Partin did telephone Sheridan frequently and advised him concerning the plans to bribe the jurors. Partin was present in the hotel on one occasion during the Test-Fleet trial when defense counsel Bufalino interviewed some truck drivers and prepared questions and answers which he asked the truck drivers to memorize. Partin related this incident to Sheridan. There was no proof that the testimony of the truck drivers was transmitted to the Government. Partin was in and out of Nashville a number of times during the trial, looking after his own business. It is significant that all of the conver-0 sations between Partin and Hoffa relative to jury tampering, which were sought to be suppressed, took place in the absence of counsel and with no witnesses present. The same is true with respect to Partin’s conversations with Hoffa and King, and with King alone. Partin testified as to no communication between the defendants and their attorneys. The credibility of the witnesses on the motion to suppress was for the District Judge to determine. United States v. Vita, 294 F.2d 524, 528 (C.A. 2, 1961) cert. denied 369 U.S. 823, 82 S.Ct. 837, 7 L.Ed.2d 788. In our judgment the findings of fact of the District Judge on the motion to suppress, as supplemented by his memorandum on the motion for a new trial, were supported by substantial evidence and are not clearly erroneous. United States v. McGavic, 337 F.2d 317, 319 (C. A. 6, 1964) cert. denied 380 U.S. 933, 85 S.Ct. 940, 13 L.Ed.2d 821; Villano v. United States, 310 F.2d 680 (C.A. 10, 1962); United States v. Page, 302 F.2d 81 (C.A. 9, 1962); United States v. Mathis, 298 F.2d 790 (C.A. 6, 1962) cert. denied 370 U.S. 947, 82 S.Ct. 1595, 8 L.Ed.2d 813; Biggs v. United States, 246 F.2d 40 (C.A. 6, 1957) cert. denied 355 U.S. 922, 78 S.Ct. 364, 2 L.Ed.2d 353. Appellants rely on Caldwell v. United States, 92 U.S.App.D.C. 355, 205 F.2d 879 (C.A.D.C.1953) cert. denied 349 U. S. 930, 75 S.Ct. 773, 99 L.Ed. 1260 and Coplon v. United States, 89 U.S.App.D.C. 103, 191 F.2d 749 (C.A.D.C.1951) cert. denied 342 U.S. 926, 72 S.Ct. 363, 96 L.Ed. 690. We think both of these cases are inapposite. In Caldwell the Government informer was present in the defense camp during the trial in which the conviction was obtained. He was hired by the Government to work in the defense camp and regularly attended meetings between defense counsel and witnesses. He reported many matters connected with the impending trial. In that case there was an interference with the attorney-client relationship. The Court recognized, however, that a surreptitious police effort “to get evidence” was proper and could not be excluded from consideration. Id. at 881 fn. 10, 75 S.Ct. 773. In Coplon the Government intercepted communications between defendant and her attorney. We doubt that the relaying of the small amount of information relative to the truck drivers had any effect on the validity of the Test-Fleet trial. Cf. United States v. Lebron, 222 F.2d 531 (C.A. 2, 1955) cert. denied 350 U.S. 876, 76 S.Ct. 821, 100 L.Ed. 774; United States ex rel. Cooper v. Denno, 221 F.2d 626 (C.A. 2, 1955) cert. denied 349 U.S. 968, 75 S.Ct. 906, 99 L.Ed. 1289. Partin was not asked to testify as to truck drivers’ statements in the present trial. There was no proof that he had read the statements or knew what was in them. But we are not called upon in this case to determine the effect of Partin’s activities on the Test-Fleet trial. The present trial for jury tampering involved an entirely different and unrelated offense. This also distinguishes Caldwell and Cop-lon, which involved the effect of illegality on the first trials The attorney-client relationship would offer no shield to either client or attorney if the client had been engaged in a plan to commit a crime in the future. Clark v. United States, 289 U.S. 1, 15, 53 S.Ct. 465, 77 L.Ed. 993 (1933); Sawyer v. Barczak, 229 F.2d 805, 809 (C.A. 7, 1956) cert. denied 351 U.S. 966, 76 S.Ct. 1025, 100 L.Ed. 1486, rehearing denied 352 U.S. 860, 77 S.Ct. 24, 1 L.Ed. 2d 70; United States v. Weinberg, 226 F.2d 161, 172 (C.A. 3, 1955) cert. denied 350 U.S. 933, 76 S.Ct. 305, 100 L.Ed. 815. Appellants urge that the testimony of Partin should have been suppressed because It was illegally obtained, being “the ill-gotten ‘fruit of the poisoned tree’ ”. They cite Wong Sun v. United States, 371 U.S. 471, 83 S.Ct. 407, 9 L.Ed.2d 441 (1963); Nardone v. United States, 308 U.S. 338, 60 S.Ct. 266, 84 L.Ed. 307 (1939); Silverthorne Lumber Co. v. United States, 251 U.S. 385, 40 S.Ct. 182, 64 L.Ed. 319 (1920). They state that this sanction is necessary to deter the Government from engaging in an unconstitutional invasion of the right to counsel. But we have pointed out that there was no invasion by the Government of the defendants’ right to counsel. Even if the evidence were tainted (which it was not), it could only affect the validity of the Test-Fleet trial and not a subsequent trial for a different offense. In Caldwell the Court quoted from Coplon to the effect that Government interception of communications between a defendant and his attorney— “ * * * invalidates the trial at which it occurred and requires a verdict of guilty therein to be set aside, regardless of whether prejudice was shown to have resulted from the denial.” Caldwell v. United States, supra, at p. 881 of 205 F.2d. In Coplon the Court directed “a new trial at which the accused can be free of surreptitious interception * * Id. 191 F.2d at page 760. This indicates rather clearly that the Court did not regard the interception as preventing a retrial of the case. The same is true in Caldwell where a new trial was ordered. In Martin v. United States, 335 F.2d 945 (C.A. 9, 1964) and United States v. Guerra, 334 F.2d 138 (C.A. 2,1964) cert. denied 379 U.S. 936, 85 S.Ct. 337, 13 L.Ed.2d 346, the Courts held that illegal conduct occurring at the first trial did not taint all subsequent proceedings. United States v. McGavic, supra; Rogers v. United States, 330 F.2d 535 (C.A. 5, 1964) cert. denied 379 U.S. 916, 85 S.Ct. 265, 13 L.Ed.2d 186; Burke v. United States, 328 F.2d 399 (C.A. 1, 1964) cert. denied 379 U.S. 849, 85 S.Ct. 91, 13 L.Ed. 2d 52. Appellants argue that the evidence was obtained by fraud and artifice. Even if true, this would not render it inadmissible. Lopez v. United States, 373 U.S. 427, 83 S.Ct. 1381, 10 L.Ed.2d 462 (1963); United States v. Thomas, 303 F.2d 561 (C.A. 6, 1962); Wellman v. United States, 227 F.2d 757, 770 (C.A. 6, 1955) rev’d on other grounds, 354 U.S. 931, 77 S.Ct. 1403, 1 L.Ed.2d 1535. In Olmstead v. United States, 277 U. S. 438, 468, 48 S.Ct. 564, 72 L.Ed. 944 (1928) the Court stated that evidence obtained by the use of informers “has always been received”. The testimony of Partin sought to be suppressed related not to trial strategy in the Test-Fleet case, but to illegal endeavors to bribe or influence jurors. Informing the Government of the existence of such evidence did not interfere with the rights of Appellants to the effective assistance of counsel. They had no lawful right to engage in such conduct, either with or without the assistance of counsel. There was no evidence here that counsel knew anything about the unlawful endeavors. Prior Inconsistent Statements of Witnesses The fact that a witness may have made prior sworn or unsworn statements, inconsistent with his testimony at the trial, does not require the exclusion of his testimony. In the present case witnesses were cross-examined extensively by the defense, not only concerning alleged prior inconsistent statements but also concerning their motives. In particular Partin was cross-examined at great length concerning many incidents which took place during his life, including his taking the Fifth Amendment before the Grand Jury, his criminal record, and the pending untried charges against him. The jury was fully informed as to his record. The credibility of the witnesses was for the jury to determine. United States v. Aviles, 274 F.2d 179 (C.A. 2, 1960) cert. denied 362 U.S. 974, 80 S.Ct. 1057, 4 L.Ed.2d 1009, 362 U.S. 982, 80 S.Ct. 1068, 4 L.Ed.2d 1015, rehearing denied 363 U.S. 858, 80 S.Ct. 1610, 4 L.Ed. 2d 1739; United States v. Reina, 242 F.2d 302, 307 (C.A. 2, 1957); Henderson v. United States, 218 F.2d 14, 17, 50 A. L.R.2d 754 (C.A. 6, 1955) cert. denied 349 U.S. 920, 75 S.Ct. 660, 99 L.Ed. 1253, rehearing denied 349 U.S. 969, 75 S.Ct. 879, 99 L.Ed. 1290. The jury could also consider the alleged threats to a witness. Enriquez v. United States, 314 F.2d 703 (C.A. 9, 1963); Nichols v. United States, 276 F.2d 147, 148 (C.A. 6, 1960) cert. denied 364 U.S. 815, 81 S.Ct. 45, 5 L.Ed.2d 47. Surveillance Appellants contend that they were denied the effective assistance of counsel because of surveillance conducted by the Government during the course of the trial. The trouble is that the claim is not supported by the evidence. The trial judge conducted a hearing on this matter at the close of the trial. The defense called a number of witnesses at the hearing, including agents of the F.B.I., attorneys for the defendants, and one, Bernard B. Spindel, an electronics expert employed by one of the defendants, who specialized in detection, listening and monitoring devices. The hearing consumed two full trial days, and is contained in two hundred pages of the record. The trial judge found that the evidence failed to establish any surveillance by Government agents, of the defendants, their attorneys or witnesses, or any interference with the defendants and their counsel. In his memorandum denying the motion for a new trial, the trial judge pointed out that: “The only surveillance shown by the record was (1) observations made by the F.B.I. during the period prior to the completion of the selection of the jury of four individuals (George E. Hix, John Cleveland, William A. Test, and Charles L. O’Brien), who were neither parties nor attorneys, nor witnesses in the case but were connected with the Teamsters organization; (2) the surveillance by the F.B.I. of one Bernard Spindel, a person having a reputation in the field of telephonic and electronic interceptions who came to Chattanooga from New York during the trial; and (3) surveillance of the F.B.I. by said Spindel on behalf of the defense by interception of F.B.I. radio communications.” An examination of the record convinces us that these findings of fact of the District Judge were supported by substantial evidence and are not clearly erroneous. The time for conducting the hearing was within the discretion of the Judge. We find no abuse of discretion. Motion for Continuance of Trial on Account of Newspaper Publicity The District Court ordered transfer of the ease for trial to Chattanooga on account of the newspaper publicity in Nashville. A motion for cou-tinuance was made on account of newspaper publicity in Chattanooga. The newspaper publicity was not all adverse to Hoffa. Some of it contained statements made on behalf of Hoffa by his own counsel. The Court found that the newspaper publicity did not have prejudicial context; that most of it did not relate to the issues of the case; and that some of it related to pre-trial procedures and trial preparations. The voir dire examination of the prospective jurors consumed about five days. They were questioned at great length by counsel for the defendants. The examination did not disclose that the prospective jurors had been influenced by newspaper publicity. The matter of continuance rested within the sound discretion of the trial judge. We find no abuse of discretion in the denial of the motion for a continuance. Appellants further complained about the number of Deputy United States Marshals attending the trial. They were dressed in plain clothes. After the jury was empaneled the Court limited the number to four. The Court had the right to provide for the presence of Deputy United States Marshals for the protection of witnesses, parties, jurors, and to insure court room decorum. This involved a discretionary matter, which we do not find was abused. Was the Testimony of Prospective Juror Tippens with Respect to the Bribery Offer Made to Him by Medlin Inadmissible as Hearsay Evidence ? Count II of the indictment charged Medlin as a principal, and Hoffa as an aider and abettor, in offering the bribe of $10,000 to prospective juror Tippens if he would vote for acquittal of Hoffa in the Test-Fleet case. As before stated, Medlin was granted a separate trial when this Court, by writ of mandamus, ordered his case retrans-ferred to Nashville. The case proceeded against Hoffa alone on Count II. Tippens had been seated in the jury-box as juror No. 12 in the Test-Fleet case and had been passed by the Government. The Court in the present case would not allow Tippens, who was called as a witness by the Government, to testify as to the content of his conversation with Medlin, in the absence of Hoffa, which he ruled was inadmissible. The content was proffered by the Government. Tip-pens was allowed to testify only as to the fact of the conversation and the matter of any report which he made to Judge Miller (the trial judge in the Test-Fleet case) which would be received only insofar as the same might or might not tend to corroborate Partin’s testimony as to alleged statements made by Hoffa to Par-tin. The Court permitted the Government to read to the jury, as a court record, the transcript of a statement made by Judge Miller at a conference in his chambers in the Test-Fleet case, in which the judge advised Hoffa and his attorneys and the attorneys for the Government, of the substance of Tippen’s report concerning Medlin’s activities. The Court ruled that the evidence could be considered only as it might tend to corroborate Partin’s testimony. Appellant’s position is that this evidence was pure hearsay and inadmissible for any purpose against any defendant, and that it was prejudicial error for the court to admit it. If Medlin had been tried with Hoffa on Count II, the evidence would certainly have been admissible against Medlin. If Medlin had died or was unavailable for trial, the Government could still proceed against Hoffa alone as an aider and abettor. The charge against Hoffa, as an aider and abettor, was not expiated by reason of the inability of the Government to proceed in the same case against Medlin. Before Hoffa could be convicted as an aider and abettor, however, it was necessary for the Government to prove that the principal, Medlin, committed the crime. Shuttlesworth v. City of Birmingham, 373 U.S. 262, 265, 83 S.Ct. 1130, 10 L.Ed.2d 335 (1963); Hendrix v. United States, 327 F.2d 971, 975 (C.A. 5, 1964); Edwards v. United States, 286 F.2d 681 (C.A. 5, 1960); Karrell v. United States, 181 F.2d 981 (C.A. 9, 1950). The only way open for the Government to prove that a crime had been committed was by the testimony of Tip-pens, who was the recipient of the bribe offer, as no witnesses were present when the bribery was attempted. Bribery attempts are not ordinarily made in public. The corpus delicti of the crime was the offering of the bribe by Medlin to the juror Tippens. It would not, in our judgment, violate the hearsay evidence rule for the Government to prove the corpus delicti by having Tip-pens narrate the facts concerning the crime committed by Medlin, which necessarily had to include his conversation with Medlin. The proof of the corpus delicti did not implicate any of the defendants. After establishing that a crime had been committed, the Government had the burden to connect Hoffa with it as an aider and abettor. This the Government endeavored to do by the testimony of Partin concerning the statements made to him by Hoffa shortly prior to and during the course of the Test-Fleet trial, from which the jury might draw inferences as to Hoffa’s participation in the crime. These statements were not only admissible as to Count II, but also as to Counts III, IV and V. They were probative evidence of his intent, plan and design. We realize that Hoffa, when called as a witness, denied the statements attributed to him by Partin; but it was for the jury to decide whether to believe Hoffa or Partin. Thus the testimony of Tip-pens was admissible as evidence to establish that a crime had been committed. It was also admissible for the purpose stated by the District Judge, namely, insofar as it might or might not tend to corroborate the testimony of Partin as to the alleged statements made to him by Hoffa. Considerable latitude must be allowed in the admission of corroborative evidence. 98 C.J.S. Witnesses § 648. We think the District Court erred in restricting the Government’s proof. The error resulted in a dismissal of Count II of the indictment. Since the error was favorable to Hoffa, he cannot complain. It follows that inasmuch as the proof admitted was less than what the Government was entitled to present, there was no error in admitting the limited evidence. Conspiracy Appellants complain about the trial court’s instructions to the jury, which were given from time to time during the progress of the trial in connection with the introduction of evidence of out-of-court statements of some of the defendants and others who, the Government’s proof tended to show, were jointly engaged in the commission of the bribery endeavors. These instructions were on the subjects of conspiracy and principal and agent. It is argued that since Count I of the indictment charging conspiracy was severed by order of the Court, evidence of a conspiracy in connection with the proof of the substantive offenses was inadmissible and that it was prejudicial error for the Court to define that term to the jury. The trial judge submitted to the jury only the substantive offenses charged in the indictment. He did not submit the crime of conspiracy, nor tell the jury that conspiracy was a separate offense. Even though Congress has created a separate crime of conspiracy, it is settled that joint participators in the commission of the substantive offenses may be denominated as conspirators. Kumpe v. United States, 250 F.2d 125 (C.A. 5, 1957). The conspiracy may be shown as an evidentiary fact to prove participation in the substantive crime. 16 Am.Jur.2d, Conspiracy, § 38, p. 147 (1964). It was the function of the Court to define the term ‘conspiracy’ and to instruct the jury as to the circumstances under which the out-of-court statements were admissible. In our judgment the Court’s definition of conspiracy was correct. He further instructed the jury that they could consider an out-of-court statement only as to the particular defendant who made the statement, until and unless the jury was satisfied from other evidence in the case that the defendant making the statement was a co-conspirator of one or more of the other defendants, in which event the jury could consider such evidence against any other defendant shown by such other evidence to have been a co-conspirator. The Court made it clear that the other evidence could not consist of hearsay declarations. The Court also instructed the jury that statements made by an agent within the scope of his authority were admissible not only against the agent but also against his principal. Appellants contend that the Court should have determined as a matter of law whether there was proof aliunde of joint conspiracy instead of submitting it to the jury. They rely on Carbo v. United States, 314 F.2d 718 (C.A. 9, 1963) cert. denied 377 U.S. 953, 84 S.Ct. 1626, 12 L.E.2d 498, and United States v. Dennis, 183 F.2d 201 (C.A. 2, 1950) aff’d 341 U.S. 494, 71 S.Ct. 857, 95 L.Ed. 1137. The Court submitted the factual issue to the jury rather than determine it as a matter of law. United States v. Dorsey, 290 F.2d 893 (C.A. 6, 1961) cert. denied 368 U.S. 825, 82 S.Ct. 44, 7 L.Ed. 2d 29; Continental Baking Co. v. United States, 281 F.2d 137 (C.A. 6, 1960); Schmeller v. United States, 143 F.2d 544 (C.A. 6, 1944). We think there was sufficient evidence to make out a prima facie case linking Appellants with the conspiracy and the Court would have been justified in so holding in accordance with the rule of Carbo and Dennis. Submitting the issue to the jury instead of determining it as a matter of law was more favorable to the Appellants and they were not prejudiced thereby. United States v. Stromberg, 268 F.2d 256 (C.A. 2, 1959) cert. denied 361 U.S. 863, 80 S.Ct. 119, 4 L.Ed. 2d 102. There was substantial evidence that the out-of-court statements were made in furtherance of the conspiracy. The Court’s instructions, in our judgment, properly limited the jury’s consideration of the evidence. He repeated them on several occasions and referred to them many times as the evir dence was offered. The Court further charged the jury that— “Each defendant is entitled to have his case determined from his own acts and statements, and from other evidence in the case which may be applicable to him, or be admitted by the Court as to him.” Only three counts of the indictment were submitted to the jury. The jury returned a not guilty verdict on Count IV and guilty verdicts on Counts III and V. We think that the jury understood the Court’s instructions and was not confused or misled by them. Since the Court had repeated or referred to his instructions relative to the out-of-court statements many times during the trial, it was not necessary for him to advert to them again in his final instructions to the jury. Joinder of Offenses and Defendants Appellants contend that there was a misjoinder of offenses and defendants in the indictment which operated to their prejudice during the trial, and that the Court erred in denying their motions for severance. Joinder of offenses and defendants is governed by Rule 8 of the Federal Rules of Criminal Procedure. Rule 8(a) relates to joinder of offenses. It authorizes joinder— “ * * * if the offenses charged * * * are of the same or similar character or are based on * * * two or more acts or transactions connected together or constituting parts of a common scheme or plan.” Counts II, III and V charged offenses of the same character, namely, endeavors to influence different jurors in the Test-Fleet case, in which only Hoffa was on trial. Count IV alleged an offense of similar character, namely, to obstruct justice in that trial. The obstruction of justice related to activities concerning a juror. Hoffa was named in all counts. He was the only defendant on trial' under Count II. In addition to Hoffa, Campbell and Parks were named in Count III, Dorfman and Tweel in Count IV, and King in Count V. All four counts involved the violation of the same statute, 18 U.S.C. § 1503. The joinder of offenses, in our opinion, came clearly within the provisions of Rule 8(a). United States v. Koury, 319 F.2d 75 (C.A. 6, 1963). Castellini v. United States, 64 F.2d 636 (C.A. 6, 1933), relied on by Appellants, is not in point. It was decided prior to the adoption of the Federal Rules of Criminal Procedure and involved a statute which did not authorize consolidation of counts involving different defendants. (Id. 636, 637, 721) It was distinguished in Ross v. United States, 197 F.2d 660 (C.A. 6, 1952) cert. denied 344 U.S. 832, 73 S.Ct. 40, 97 L.Ed. 648. Rule 8(b) authorizes joinder of defendants— “ * * * if they are alleged to have participated * * * in the same series of acts or transactions constituting an offense or offenses.” “[They] may be charged in one or more counts together or separately and all of the defendants need not be charged in each count.” It seems to us that the acts of the defendants were certainly connected, Kivette v. United States, 230 F.2d 749 (C.A. 5, 1956) cert. denied 355 U.S. 935, 78 S.Ct. 419, 2 L.Ed.2d 418, or factually related, Williamson v. United States, 310 F.2d 192 (C.A. 9, 1962). They all concerned endeavors to influence jurors in the Test-Fleet trial. They were all committed in the same locality and during the course of that trial. They all had a common objective, namely, to prevent a guilty verdict against Hoffa. The fact that evidence may be admissible against one defendant, but not against others does not require separate trials. Such a situation is usually present in joint trials. Rizzo v. United States, 304 F.2d 810 (C.A. 8, 1962) cert. denied 371 U.S. 890, 83 S.Ct. 188, 9 L.Ed. 2d 123. In passing upon the various motions for severance, the District Court was required to exercise its discretion. We do not find that it was abused or that defendants were prejudiced by the denial of those motions. Opper v. United States, 348 U.S. 84, 95, 75 S.Ct. 158, 99 L.Ed. 101 (1954). The Alleged Fraud on the Grand Jury Appellants contend that the Government perpetrated a fraud on the Grand Jury by subpoenaing Partin and his claiming that answering questions would incriminate him. They argue that the indictment should have been dismissed or quashed. The evidence does not support this charge. It should be noted that after receipt of the subpoena, Partin took up the matter with one of Hoffa’s attorneys, Bufa-lino, who advised him to take the Fifth Amendment, and instructed him how to do it. He also discussed the matter with a Nashville lawyer, to whom he had been referred by Bufalino, and who gave him the same advice. There was no evidence that Partin had been instructed by the Government to claim his constitutional privilege. Partin testified that he acted on the instructions of Bufalino. The Government further states that Partin was not the only witness who took the Fifth Amendment. Fourteen other witnesses did so. It offered to permit in camera inspection of the Grand Jury transcript by the Court to substantiate this point. We cannot assume improper conduct on the part of Government agents in the absence of evidence. Partin had the constitutional right to invoke the Fifth Amendment. Even though he had been acting as a Government informer, the Grand Jury could have indicted him for his activities in connection with the offense charged in Count IV. The Government was not obligated to call Partin as a witness before the Grand Jury, much less to persuade him to testify, even assuming that it might have been able to do so. Competency of Evidence to Warrant Indictment It is further contended that without the testimony of Partin there was no competent evidence before the Grand Jury to support the indictment of Hoffa. This would not justify quashing the indictment. Martin v. United States, 335 F.2d 945 (C.A. 9, 1964). Hearsay evidence is sufficient. Costello v. United States, 350 U.S. 359, 76 S.Ct. 406, 100 L.Ed. 397 (1956). Disclosure of Grand Jury Minutes We find nothing irregular in the limited disclosure of Grand Jury minutes to the Special Consultant to the Attorney General and the agents of the F.B.I. who were working on the case. Fed.R.Crim.P. 6(c). If the disclosures were unauthorized, any violators of the Rule could be punished for contempt, but dismissal of the indictment would not be justified. United States v. United States District Court for Southern Dist. of W. Va., 238 F.2d 713, 721-722 (C.A. 4, 1956) cert. denied 352 U.S. 981, 77 S.Ct. 382, 1 L.Ed.2d 365. Sufficiency of Indictment We think the indictment charging Hoffa as an aider and abettor was sufficiently definite. It was not necessary to particularize the acts constituting the aiding and abetting. One who aids and abets in the commission of a crime is just as guilty as the principal. The indictment did describe the principal offenses, which is all that was necessary. Coffin v. United States, 156 U.S. 432, 15 S.Ct. 394, 39 L.Ed. 481 (1895); United States v. Simmons, 96 U.S. 360, 24 L.Ed. 819 (1877); Ellis v. United States, 321 F.2d 931 (C.A. 9, 1963). Production of Grand Jury Minutes Appellants contend that the District Court erred in not ordering the production of the Grand Jury minutes containing the testimony of the witness Partin, which they desired to use for impeachment purposes in connection with their cross-examination. On direct examination of Partin, no questions were asked of him concerning his testimony before the Grand Jury. The defense brought out on cross-examination the fact that Partin had appeared before the Grand Jury and refused to answer questions on the ground of self-incrimination. It is claimed that Partin’s invoking the privilege against self-incrimination before the Grand Jury was inconsistent with the fact that he testified at the trial and therefore the minutes should have been furnished to the defense for impeachment purposes. When the question was presented, the District Court required the production of the Grand Jury minutes for in camera inspection. The Court declared a recess and read the transcript. He then determined from his in camera inspection that the minutes were not subject to production. We have read the transcript and are of the same opinion. There was no inconsistency in the testimony of Partin on the subject of the Fifth Amendment. He admitted on cross-examination that he had invoked the privilege against self-incrimination before the Grand Jury. It was not necessary to introduce the Grand Jury minutes to prove the same thing which was already admitted and was before the jury. Admitting the transcript would be merely cumulative evidence on a matter which was not in dispute. Invoking the constitutional privilege against self-incrimination before a Grand Jury does not give rise to an inference that the witness has done something wrong or that he is guilty of an offense. Grunewald v. United States, 353 U.S. 391, 77 S.Ct. 963, 1 L.Ed.2d 931 (1957). It is debatable whether the Court should have allowed any cross-examination relative to the witness’ taking the Fifth Amendment. In permitting cross-examination on the subject, the Court certainly accorded the defendants everything to which they were entitled. When the Court determined that there was no inconsistency, he was not obliged to turn over the Grand Jury minutes to the defense. United States v. Keegan, 331 F.2d 257 (C.A. 7, 1964) cert. denied 379 U.S. 828, 85 S.Ct. 57, 13 L.Ed.2d 37; United States v. Giampa, 290 F.2d 83 (C.A. 2, 1961). We find nothing irregular or prejudicial in the fact that Appellants Parks, Campbell and King were subpoenaed before the Grand Jury. No claim is made that they were not advised as to their rights. United States v. Annunziato, 293 F.2d 373 (C.A. 2, 1961) cert. denied 368 U.S. 919, 82 S.Ct. 240, 7 L.Ed.2d 134. Sufficiency of the Evidence to Support Convictions of Hoffa and Campbell Appellants contend that giving full credence to Partin’s testimony and the other evidence in the case, it was sufficient to convict Hoffa and Campbell on Count III of the indictment. We do not agree. In determining whether the motions for judgments of acquittal should have been granted, we are required to consider the evidence in the light most favorable to the Government. United States v. Decker, 304 F.2d 702, 705 (C.A. 6, 1962). There can be no question but that endeavors were made to tamper or bribe, not merely one juror, but at least three of the jurors in the Test-Fleet case. A number of persons participated in the illegal acts. The result of the trial was a “hung jury”. The question here is whether Hoffa and Campbell were linked with the endeavors by sufficient evidence. (A) Hoffa Hoffa was the only defendant in the Test-Fleet case. He was the only person who could possibly benefit from the jury-tampering activities. The obvious purpose of the activities was to prevent a verdict of guilty. Hoffa thus had “a stake in the venture”. Direct Sales Co. v. United States, 319 U.S. 703, 713, 63 S.Ct. 1265, 87 L.Ed. 1674 (1943). Hoffa was most certainly linked with the illegal activities by the testimony of Partin, which we have heretofore detailed. The statements of Hoffa to Partin were made during the progress of the Test-Fleet trial, when the unlawful acts were being committed. These statements, if they are to be believed, indicated much more than mere knowledge