Full opinion text
HEANEY, Circuit Judge. John David Bartlett appeals from a judgment of the district court entered in accordance with a jury verdict finding him guilty of assault with intent to commit rape in violation of 18 U.S.C. § 113(a). We affirm. I. On March 14, 1979, Bartlett, an enrolled member of the Cheyenne River Sioux Tribe, was arrested and charged under state law with the attempted rape of Henrietta Ruth Janis at the Eagle Butte Legal Services Office on the Cheyenne River Sioux Reservation in South Dakota. On April 24,1979, Bartlett pled guilty in South Dakota state court and was sentenced to a statutory maximum prison term of ten years. Bartlett immediately began serving his state sentence. On February 9, 1982, after exhausting his state court remedies, Bartlett filed a petition for a writ of habeas corpus in the federal district court of South Dakota. The petition alleged that the South Dakota state court was without jurisdiction because the federal government had exclusive jurisdiction to try offenses committed by Indians on the Cheyenne River Sioux Reservation pursuant to 18 U.S.C. § 1153. The district court agreed and on April 19, 1982, filed a Memorandum and Order granting the petition. This Court affirmed the decision of the district court, Bartlett v. Solem, 691 F.2d 420 (8th Cir.1982) (en banc), and was ultimately affirmed by the United States Supreme Court. Solem v. Bartlett, 465 U.S. 463, 104 S.Ct. 1161, 79 L.Ed.2d 443 (1984). When counsel for the government learned of the Supreme Court’s decision, he immediately contacted state penal authorities to determine if Bartlett still presented a danger to the community. The state authorities expressed their belief that Bartlett continued to pose such a danger. Thus, on March 7, 1984, one week before the statute of limitations would have run, the government obtained an indictment charging Bartlett with assault with intent to commit rape. On September 25, 1984, Bartlett filed a motion to dismiss for pre-indictment delay. On April 5, 1985, the district court granted the motion and ordered Bartlett released from custody. In so doing, the court found that the government’s decision to delay bringing an indictment until Bartlett’s ha-beas action had been definitively decided on appeal was not reasonable in light of its consistent assertion of jurisdiction over crimes on the reservation. United States v. Bartlett, No. Cr. 84-30018 (D.S.Dak.1985). In addition, the district court found that Bartlett’s continued incarceration and the death or disappearance of several witnesses who might have provided exculpatory evidence actually prejudiced his ability to present a defense. Id. On appeal, this Court reversed and remanded for a new trial finding that Bartlett had failed to demonstrate sufficient actual prejudice to warrant dismissal. United States v. Bartlett, 794 F.2d 1285, 1290-93 (8th Cir.), cert. denied, 479 U.S. 934, 107 S.Ct. 409, 93 L.Ed.2d 361 (1986). In so doing we stated: The case before us is presented on a limited record developed at a pre-trial hearing. Conceivably, when the issues are fully tried, there may be additional evidence presented that Bartlett sustained actual and substantial prejudice as a result of the loss of the witnesses. The district court is free to reevaluate whether the delay has caused Bartlett such prejudice as to impair the fairness of the trial. Id. at 1294 (citation omitted). Following the remand, Bartlett renewed a previous motion for a psychiatric examination. On September 4, 1986, the district court entered an order granting the motion. Upon examination, Bartlett was found competent to stand trial. On January 12, 1987, the jury trial began and, on January 14, 1987, the jury returned a verdict of guilty. On February 18, 1987, the trial court sentenced Bartlett to the maximum penalty permitted by statute and ordered a study and observation pursuant to 18 U.S.C. § 4205(c) and (d). On June 12, 1987, following completion of the study, the court sentenced Bartlett to eighteen years imprisonment. II. On appeal, Bartlett raises seven issues: (1) whether his prosecution and punishment violates the Fifth Amendment prohibition of double jeopardy, (2) whether the district court erred in refusing to instruct the jury on the issue of “diminished capacity,” (3) whether the district court erred in admitting a confession, (4) whether the district court erred in admitting testimony of a psychologist concerning statements made by Bartlett during a prior evaluation, (5) whether the district court erred in refusing to admit alleged prior false accusations of rape made by the victim, (6) whether the indictment should have been dismissed for pre-indictment delay, and (7) whether the district court had jurisdiction. We address these issues in turn. A. Double Jeopardy Bartlett’s case raises two distinct double jeopardy issues: first, whether the subsequent federal prosecution was proper, and second, whether it subjected him to multiple punishment for the same offense. 1. Propriety of the Subsequent Prosecution It is well settled that a state prosecution is no bar to a subsequent federal prosecution absent a showing that one sovereign was acting as “merely a tool” of the other in order to avoid the prohibition against double jeopardy. See e.g., Abbate v. United States, 359 U.S. 187, 194-95, 79 S.Ct. 666, 670, 3 L.Ed.2d 729 (1959) (reviewing cases); Bartkus v. Illinois, 359 U.S. 121, 123-24, 79 S.Ct. 676, 678, 3 L.Ed.2d 684 (1959); United States v. Lanza, 260 U.S. 377, 382, 43 S.Ct. 141, 142, 67 L.Ed. 314 (1922). Bartlett does not claim that the federal prosecutor was acting as a tool of South Dakota in pursuing the subsequent prosecution. Nonetheless, he urges the Court to exercise its “supervisory power” and to dismiss the indictment because the federal prosecutor acted in bad faith and in a discriminatory manner in prosecuting him. Specifically, Bartlett argues that his prosecution was brought in contravention of the Justice Department’s Petite policy. As this Court has written, the Petite policy: [W]as first expressed by Attorney General William P. Rogers in a news release dated April 6, 1959. In that news release, the Attorney General stated that the power of the federal government to prosecute a defendant who had previously been prosecuted in a state court for the same act or acts should be sparingly used. Specifically, he expressed the view that such prosecutions should not occur “unless the reasons are compelling.” He doubted “that it is wise or practical to attempt to formulate detailed rules to deal with the complex situation which might develop, particularly because a series of related acts are often involved.” However, he expressed the view that pri- or to trial of a federal case following a state prosecution, a recommendation should be submitted by the United States Attorney to the appropriate Assistant Attorney General, and no such recommendation should be approved without its having first been brought to the attention of the Attorney General. Delay v. United States, 602 F.2d 173, 176 (8th Cir.1979), cert. denied, 444 U.S. 1012, 100 S.Ct. 660, 62 L.Ed.2d 641 (1980) (footnotes omitted). The United States Supreme Court in granting the Solicitor General’s request to dismiss an indictment brought in contravention of the Petite policy noted: The policy * * * limits the federal prosecutor in the exercise of his discretion to initiate or to withhold, prosecution for federal crimes. The policy is useful to the efficient management of limited Executive resources and encourages local responsibility in law enforcement. But it also serves the more important purpose of protecting the citizen from any unfairness that is associated with successive prosecutions based on the same conduct. In this respect, the policy represents the Government’s response to repeated expressions of concern by Members of this Court. In United States v. Lanza, 260 U.S. 377, 383, 67 L.Ed. 314, 43 S.Ct. 141 [143] (1922), for example, Mr. Chief Justice Taft quoted the following passage from Fox v. Ohio, [46 U.S.] 5 How 410, 435, 12 L.Ed. 213 (1847): “It is almost certain, that, in the benignant spirit in which the institutions both of the state and federal systems are administered, an offender who should have suffered the penalties denounced by the one would not be subjected a second time to punishment by the other for acts essentially the same, unless indeed this might occur in instances of peculiar enormity, or where public safety demanded extraordinary rigor.” Rinaldi v. United States, 434 U.S. 22, 27-28, 98 S.Ct. 81, 84, 54 L.Ed.2d 207 (1977) (per curiam). The government contends that the Petite policy does not apply to Bartlett’s case because the state prosecution was set aside on jurisdictional grounds and not on the merits. We need not, however, determine the applicability of the policy to Bartlett’s case. Despite the worthy goals the Supreme Court has recognized the policy serves, this Court has found that the Petite policy does not generally confer substantive rights. See United States v. Moore, 822 F.2d 35, 36 (8th Cir.1987); United States v. Staples, 747 F.2d 489, 491 (8th Cir.1984); Delay, 602 F.2d at 178; but see Delay, 602 F.2d at 179 (Heaney, J. concurring in the result) (stating, “In my view, when a defendant has properly raised this policy * * * we should follow the lead of the Supreme Court * * * and hold that the policy against multiple prosecutions serves the important purpose of protecting the citizen from any unfairness that is associated with successive prosecution based on the same conduct.”). Thus, the policy cannot form the basis of a claim that the subsequent prosecution was improper. Bartlett also argues that the prosecution was discriminatory and in bad faith because it was brought only after he sue-cessfully challenged his state conviction. In this regard, Bartlett argues that if he had not exercised his right to challenge the conviction, he would by now have served his state sentence and would no longer be in custody. Yet, as this Court has stated: [t]he presumption is always that a prosecution for violation of a criminal law is undertaken in good faith and in nondiscriminatory fashion * * *. In order to overcome this presumption the defendant bears the burden of proving that he was singled out for prosecution while others similarly situated were not indicted, and that the decision to prosecute him was in bad faith and based upon impermissible consideration. United States v. Crow Dog, 532 F.2d 1182, 1196 (8th Cir.1976), cert. denied, 430 U.S. 929, 97 S.Ct. 1547, 51 L.Ed.2d 772 (1977). We cannot say that Bartlett has met his burden of showing that the prosecution was based upon impermissible considerations. First, the State of South Dakota, and not the federal government, petitioned the Supreme Court to review the jurisdictional question at issue in Bartlett’s case. In point of fact, the federal government maintained a position consistent with that urged by Bartlett throughout the appeal. See United States v. Bartlett, 794 F.2d 1285, 1293 n. 12 (8th Cir.1986) (“The district court found that the United States had consistently asserted it had criminal jurisdiction on the Cheyenne River Sioux Reservation throughout the 1970’s * * *. It further found that the files of the court reflect numerous criminal indictments for acts on the reservation during the entire pendency of the Bartlett habeas corpus appeal.”). The government candidly admits that the primary consideration in its determination to prosecute was the view of state penal authorities that Bartlett continued to present a substantial danger to the community. Brief of Appellee at 12-13. While the presentence investigation report and the psychiatric evaluation contained therein indicate that the reason Bartlett presents a danger to the community is his troubled mental state, and while this Court cannot condone the use of a criminal proceeding to incapacitate one who is dangerous by reason of mental illness, we cannot say that Bartlett has made a sufficient showing that the decision to prosecute him was based on impermissible considerations. Thus, we find that the subsequent federal prosecution was proper. 2. Multiple Punishment The second double jeopardy concern is whether the subsequent federal prosecution subjected Bartlett to multiple punishment for the same conduct. At oral argument before this Court, the government conceded that Bartlett should be given full credit for the time he served in prison as a result of the invalid state conviction. Thus, the conviction will result in only one punishment and does not violate the prohibition against double jeopardy. B. Diminished Capacity Bartlett argues that the district court erred in refusing to instruct the jury on the issue of diminished capacity. At the outset, it is important to note that Bartlett does not contend he was incompetent to stand trial or legally insane at the time of the crime. In addition, Bartlett did not seek to introduce at trial psychiatric evidence in mitigation of culpability or punishment. Rather, he offered evidence of his mental condition solely for the purpose of showing that, at the time of the incident, his mental condition was such that he lacked the capacity to form the specific intent required to commit the crime with which he was charged. The trial court allowed Bartlett, out of the presence of the jury, to make an offer of proof as to the evidence he intended to offer negating his capacity to form the requisite specific intent. After considering the offer, the court allowed Bartlett to introduce the evidence, subject to the restrictions of Rule 704(b) of the Federal Rules of Evidence. Thereafter, in the presence of the jury, Bartlett presented the testimony of three witnesses on the issue of “diminished capacity.” The first witness was Raylene Briggs. In 1978 and 1979, Briggs was employed as a prosecutor for the Cheyenne River Sioux Tribe. In that capacity she met Bartlett, who was employed as a jailor in the county jail. She testified that in the fall of 1978, she went to the jail and discovered Bartlett had released all of the prisoners. She also testified that Bartlett was fired after about a month on the job because, “[h]e did lots of strange things.” Trial Transcript at 179-80. The second witness was George Bartlett, Bartlett’s uncle whom Bartlett had lived with for approximately three weeks in the fall of 1978. George Bartlett testified that at the beginning of the three week period, Bartlett was taking his medication and was “normal.” He also testified, however, that toward the end of the three week period, Bartlett became unresponsive and would “just up and walk away from you while you was talking to him” and “wouldn’t respond in a correct manner.” Trial Transcript at 182. The third witness was Dr. Donald R. Gannon, a psychologist at the South Dakota State Human Services Center. Dr. Gan-non testified that he evaluated Bartlett in April of 1979 and again in 1982. He testified that during the evaluation he had seen Bartlett “at various stages of organization or disorganization * * * and * * * would attest that there [are] significant differences between these two conditions.” Trial Transcript at 189. In addition, he testified that Bartlett “demonstrate[s] at times some significant distortions in the way he perceives what many of us recognize as reality.” Id. at 190. Finally, on redirect examination Dr. Gannon testified that he diagnosed Bartlett as “schizophrenic,” a term he used to describe one whose “ties with reality are either tenuous or virtually destroyed.” Id. at 195. After all evidence had been presented and the lawyers had made their closing arguments, the court instructed the jury on the elements of the crime with which Bartlett was charged including, in particular, specific intent. Bartlett objected to the specific intent instruction and offered instructions explicitly directing the jury to consider whether, as a result of a mental disorder, he was unable to form the required specific intent. The court overruled the objection and refused the instructions stating: I concluded that I would not submit as such the diminished capacity defense but only admitted the medical or psychological evidence that I did on the basis that you were offering it on the issue of his ability as to whether or not he did entertain the specific intent required at the time of the alleged incident. Trial Transcript at 169. The government takes the position that the court did not err in refusing Bartlett’s proffered instructions because section 402(a) of Insanity Defense Reform Act of 1984, Pub.L. No. 98-473 § 402(a), reprinted in 1984 U.S.Code & Admin. News (98 Stat.) 2057 (currently codified at 18 U.S.C. § 17(a)), renders inadmissible all psychiatric testimony not offered in connection with the affirmative defense of insanity. The section states: It is an affirmative defense to a prosecution under any Federal statute that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe mental disease or defect, was unable to appreciate the nature and quality or the wrongfulness of his acts. Mental disease or defect does not otherwise constitute a defense. Although the last sentence of the section would seem to support the government’s position, the section’s legislative history and statutory scheme reveal that it was not intended to bar evidence tending to show that the defendant was incapable of forming the requisite intent to commit the crime charged. 1. The Legislative History The legislative history of the section is clear that the last sentence is intended to apply only if the defendant seeks to raise mental disease or defect as an affirmative defense. Therefore, the sentence would apply only if the defendant seeks to introduce evidence of a mental disease or defect to excuse or to justify what would otherwise be a criminal act. This is in clear contrast to introduction of such evidence to negate the presence of an element of the offense such as specific intent. Explaining the last sentence of 18 U.S.C. § 17(a), the relevant Senate Report states: This is intended to insure that the insanity defense is not improperly resurrected in the guise of showing some other affirmative defense such as that the defendant had a “diminished responsibility” or some similarly asserted state of mind which would open the door, once again, to needlessly confusing psychiatric testimony. S.Rep. No. 225, 98th Cong., 2d Sess., reprinted in 1984 U.S.Code Cong. & Admin. News 3182, 3411 (emphasis added). Further support for the distinction between evidence of an affirmative defense is found elsewhere in the same report. The report makes clear that the act disallows evidence of voluntary intoxication as an affirmative defense or excuse to a crime but allows it to negate the element of specific intent. The report states, “Of course, intoxication may negate a state of mind required for the commission of the offense charged.” Id. at 3411 n. 30. Thus, the Senate Report distinguishes evidence of “diminished responsibility,” offered as an affirmative defense, from the negation of specific intent by reason of voluntary intoxication which is not an affirmative defense. The distinction is especially important because it defies logic to assume Congress intended to recognize the distinction between affirmative and non-affirmative defenses in the area of voluntary intoxication but did not intend to draw such a distinction if, through no fault of his own, the defendant suffers from a mental disease or defect. Finally, a House report accompanying a bill containing a provision very similar to section 17(a), clearly indicates the purpose and intended effect of 18 U.S.C. § 17(a). It states: Since the current insanity defense is derived from case law, the Committee is concerned that additional affirmative defenses based on mental disorders could be developed by the courts in order to circumvent the tighter requirements developed by Congress. Thus, the bill provides that the Committee’s test constitutes the only affirmative defense based on mental disorder that will be applicable in Federal courts. Mental disorders will remain relevent, of course, to the issue of the existence of a mental state required for the offense, such as the specific intent required for certain crimes. This accords with current practice. H.R.Rep. No. 98-577, 98th Cong., 1st Sess., 14-15 (emphasis added, footnote omitted). In sum, the legislative history of 18 U.S. C. § 17(a) clearly indicates that its last sentence was intended to bar only affirmative defenses and not evidence of mental disorders negating the element of specific intent. 2. The Statutory Scheme The statutory scheme of the Insanity Defense Reform Act also indicates that Congress intended to allow evidence of mental disease or disorder negating a specific intent. First, evidence negating specific intent is consistent with Federal Rule of Criminal Procedure 12.2. As the court in United States v. Frisbee, 623 F.Supp. 1217 (N.D.Cal.1985), has stated: Paragraph (a) of rule 12.2 requires a defendant to give notice prior to trial of his or her intent to make an insanity defense, and paragraph (b) requires pretrial notice of a defendant’s intent to offer “expert testimony relating to a mental condition bearing on the issue of his guilt_” If the government’s interpretation of [section 17(a)] is correct, it would seem that rule 12.2(b) is quite unnecessary. Nevertheless, Congress has not repealed the rule despite the fact that it has made other modifications to the rule since the enactment of [section 17(a)]. Although this omission is not overwhelming evidence of congressional intent, it does seem inconsistent with the government’s argument in this case. Id. at 1223. Thus, if rule 12.2(b) is to have any continuing effect, psychiatric evidence negating specific intent must be admissible. Second, Federal Rule of Evidence 704(b), enacted as part of the Insanity Defense Reform Act, clearly prohibits an expert witness “testifying with respect to the mental state or condition of a defendant in a criminal case” from stating an opinion or inference as to “whether the defendant did or did not have the mental state or condition constituting an element of the crime charged * * Fed.R.Evid. 704(b). The rule concludes that “[s]uch ultimate issues are for the trier of fact alone.” Id. Yet, the rule’s prohibition of “ultimate issue” psychiatric testimony on the question of the defendant’s capacity to form the requisite intent is unnecessary if 18 U.S.C. § 17(a), is interpreted as prohibiting a defendant from even raising the contention that, at the time of the act, a mental condition rendered him or her incapable of forming the requisite intent. Indeed, if section 17(a) is so interpreted all such psychiatric evidence would be inadmissible, not just testimony concerning the “ultimate issue.” In light of the fact that rule 704(b) was enacted as part of the same act containing section 17(a), we should not interpret the two provisions so as to render either superfluous. In sum, we reject the government’s position that all psychiatric evidence not offered in connection with the affirmative defense of insanity is inadmissible. The Insanity Defense Reform Act, as clarified by its legislative history and statutory scheme, clearly allows Bartlett to raise the issue whether a mental disease or defect at the time of the alleged crime rendered him incapable of forming the requisite intent. This, however, does not end the matter. Although the district court indicated it would not recognize a defense based on “diminished capacity,” it did allow Bartlett to present psychiatric evidence negating his capacity to form specific intent. Thus, having determined that the district court properly admitted the evidence, we must now consider whether the district court erred in giving a generic specific intent instruction rather than an instruction which clearly set forth Bartlett’s contention that his mental condition rendered him incapable of forming the specific intent to commit the crime. In reviewing the adequacy of jury instructions in criminal cases, this Court has long held that “a defendant is entitled to an instruction on his theory of the case if there is evidence to support it and a proper request has been entered.” United States v. Brown, 540 F.2d 364, 380 (8th Cir.1976); see also United States v. Montgomery, 819 F.2d 847, 851-52 (8th Cir.1987); United States v. Richmond, 700 F.2d 1183, 1195-96 (8th Cir.1983); United States v. Brake, 596 F.2d 337, 339 (8th Cir.1979). Yet, this Court has also held that a defendant is not entitled to a particularly worded instruction and the district court has considerable discretion in framing the instructions. Richmond, 700 F.2d at 1196. Moreover, the instructions are sufficient if, taken as a whole, they adequately and correctly cover the substance of the requested instruction. Brake, 596 F.2d at 339. Applying the standard to the instructions given by the district court, we cannot say they were fatally flawed. Although a more detailed instruction drawing attention to the issue of whether Bartlett’s mental condition rendered him incapable of forming the requisite mental state would have been preferable, we cannot say that the instructions, taken as a whole, failed to adequately and correctly apprise the jury of Bartlett’s theory of the case. Despite the somewhat confusing rationale given by the district court for denying the proposed instructions, it is clear that Bartlett’s counsel understood the court’s statement as affording him the opportunity to raise lack of capacity to form the requisite specific intent in his closing argument. Moreover, the record reveals that Bartlett’s counsel took full advantage of that opportunity. While “arguments of counsel cannot substitute for instructions by the court,” Taylor v. Kentucky, 436 U.S. 478, 488-89, 98 S.Ct. 1930, 1936, 56 L.Ed.2d 468 (1978), this is not a case in which the trial court failed to instruct on a defense theory. Rather, it is one in which the court refused to instruct with the specificity or in the language defense counsel desired. In such a situation, it is appropriate to assess the instructions given by the court in the context of the entire record to determine whether the failure to give the more specific instruction was harmless beyond a reasonable doubt. Cf. Richmond, 700 F.2d at 1196 (assessing prejudice to the defendant from trial court’s failure to give specific “theory of defense” instruction); Brown, 540 F.2d at 381 (same). In the instant case, we find that the failure of the district court to give a separate and specific instruction on the issue whether Bartlett’s mental condition rendered him incapable of forming the requisite specific intent was harmless beyond a reasonable doubt. C. Admission of the Confession Bartlett contends that the trial court erred in admitting a confession he gave to the police. Prior to the originally scheduled federal trial, Bartlett brought a motion to suppress the confession, contending that his mental condition at the time he gave it rendered it involuntary. On Octe-ber 2, 1984, the district court held a hearing at which the government presented testimony concerning the confession. The testimony related that several hours after the incident, in response to a police request, Bartlett went to the office of Bureau of Indian Affairs Special Officer Louis White. There he found White and Ted Schweitzer, the Sheriff of Dewey County, South Dakota. On his arrival, the officers read to Bartlett from a form advising him of his Miranda rights. The officers then inquired whether Bartlett understood the rights and whether he wished to waive them. Bartlett answered both inquiries affirmatively. Thereafter, the officers requested Bartlett to sign the form indicating that he was knowingly and voluntarily waiving his rights. Both officers signed the form as witnesses. Both officers testified that, after waiving his rights, Bartlett gave an oral statement in which he admitted to striking Janis, carrying her to a back room, undressing her, and attempting to rape her. Transcript of October 2, 1984, Hearing at 29-30, 40-41. Both officers testified that the meeting lasted no more than a half hour and that Bartlett appeared normal throughout the meeting. After hearing the testimony, the trial court reserved ruling on the voluntariness of the confession and sua sponte ordered Bartlett to submit to an examination at the United States Hospital in Springfield, Missouri. At trial, Bartlett again renewed his motion to suppress the confession. Initially, the district court refused to rule on the motion, erroneously believing that the motion had been denied at the October 2 hearing. After a recess during which the court examined a transcript of the October 2 hearing, the court, however, acknowledged it had not ruled on the motion. The court then entered a ruling, carefully analyzing the record made at the October 2, 1984, hearing as it related to the finding of vol-untariness required by 18 U.S.C. § 3501. The court found the following facts to have existed at the time the confession was given: (1) Bartlett was not under arrest; (2) Bartlett knew the nature of the offense of which he was suspected; (3) Bartlett was advised of and knew that he was not required to make any statement and that any such statement could be used against him; (4) Bartlett was advised of his right to assistance of counsel, but was without the assistance of counsel when he gave the confession. On the basis of these findings, the district court concluded that the government had established voluntariness by a preponderance of the evidence and denied the motion to suppress. Trial Transcript at 32-34. Pursuant to 18 U.S.C. § 3501(a), before a confession is received in evidence, the trial judge must, out of the presence of the jury, determine that it was voluntarily made. In making that determination, the trial judge is to consider “all of the circumstances surrounding the giving of the confession” including those factors specifically enumerated in 18 U.S.C. § 3501(b). Pursuant to the section, however, “[t]he presence or absence of any of the * * * factors * * * need not be conclusive on the issue of voluntariness of the confession.” 18 U.S. C. § 3501(b). Reviewing a voluntariness determination, this Court will overturn the trial court’s factual findings as to the circumstances under which a confession was given only if they are clearly erroneous. See, e.g., United States v. Iron Thunder, 714 F.2d 765, 772 (8th Cir.1983). The legal sufficiency of those findings to show volun-tariness is, however, a question of law which we review de novo. See United States v. Wilson, 838 F.2d 1081, 1086 (9th Cir.1988) (citing Colorado v. Connelly, 479 U.S. 157, 107 S.Ct. 515, 93 L.Ed.2d 473 (1986); Crane v. Kentucky, 476 U.S. 683, 106 S.Ct. 2142, 90 L.Ed.2d 636 (1986)). The government argues that this case is governed by Colorado v. Connelly, 479 U.S. 157, 107 S.Ct. 515, 93 L.Ed.2d 473 (1986). In that case, the defendant approached two police officers, confessed to a murder, and directed them to the location of a past murder. Throughout their contact with the defendant, the officers perceived nothing indicating the defendant was mentally ill. Subsequently, the defendant became disoriented and stated that voices told him to confess or commit suicide. The Colorado Supreme Court held that the defendant’s mental condition prevented him from giving a voluntary confession and concluded that the confession could not be admitted consistent with the federal constitutional due process requirements. The United States Supreme Court reversed, holding that government overreaching is a predicate to a violation of due process in the context of the admission of a confession. Thus, although the Court found that mental condition is “surely relevant to an individual’s susceptibility to police coercion, mere examination of the con-fessant’s state of mind can never conclude the due process inquiry.” 479 U.S. at 165, 107 S.Ct. at 521, 93 L.Ed.2d at 483. The voluntariness inquiry in this case, however, is based on the dictates of 18 U.S.C. § 3501. In this regard, the second factor to be considered by the trial court in section 3501(b) is whether, at the time the confession was given, the defendant knew the nature of the offense with which he was charged or of which he was suspected. While this may indicate that something more is required under section 3051(b) than is required by the Due Process Clause, we need not decide that issue. Review of the record reveals that the findings of the district court concerning the enumerated factors are not clearly erroneous. In addition, we note that the statement Bartlett gave to the officers was straightforward, coherent, and entirely consistent with that of other witnesses at the trial. Thus, we hold that the district court did not err in admitting the confession. D. Admission of Bartlett’s Statements to the Psychologist Bartlett contends that the district court erred in admitting testimony of a psychologist, Dr. Gannon, concerning statements Bartlett made to him during an examination conducted in connection with the prior state court proceedings. At trial, Bartlett offered Dr. Gannon’s testimony in support of his contention that his mental condition at the time of the offense rendered him incapable of forming the requisite intent. On direct examination, Dr. Gannon testified that he examined Bartlett in April of 1979, administering three or four common psychological tests, observing him, and visiting with him face to face. Trial Transcript at 187-89. Based on his examination, Dr. Gannon concluded that Bartlett was “marginally able to assist in his defense” but that at times he “demonstrated some significant distortions in the way he perceives what many of us recognize as reality.” Trial Transcript at 189-90. On cross-examination, the prosecutor sought to question Dr. Gannon concerning statements Bartlett made to him during the 1979 examination. Bartlett’s counsel objected on the grounds that the line of inquiry was beyond the scope of direct examination, invaded the doctor-patient privilege, impermissibly offered Bartlett’s statements as fact, and went beyond permissible analysis of the statements. Trial Transcript at 193. The court overruled the objection. Thereafter, Dr. Gannon testified that Bartlett, in response to his question as to what happened, stated that he “raped a woman.” Bartlett argues that, had Dr. Gannon examined Bartlett in connection with his federal trial pursuant to 18 U.S.C. § 4241 or § 4242, Rule 12.1(c) of the Federal Rules of Criminal Procedure would have rendered the statements inadmissible. From this, Bartlett contends that the Fifth Amendment privilege against self-incrimination imposes the same requirements if an examination is conducted pursuant to an order of a state court. In addition, Bartlett argues that, even if the requirements of Rule 12.2(c) are not applicable, the question remains whether the statement to Dr. Gan-non was voluntary and therefore subject to 18 U.S.C. § 3501 which requires a hearing out of the presence of the jury to determine voluntariness. The government responds that the Fifth Amendment privilege does not apply for two reasons. First, because Bartlett introduced the testimony of Dr. Gannon in support of his contention that he was incapable of forming the requisite intent, Dr. Gannon was not acting as the agent of the government in relating Bartlett’s statements. Cf. Estelle v. Smith, 451 U.S. 454, 465-66, 101 S.Ct. 1866, 1874, 68 L.Ed.2d 359 (1981) (distinguishing situation in which defendant seeks to introduce psychiatric testimony). Second, Dr. Gannon’s statement was not admitted for the purpose of proving guilt but rather for the purpose of determining the basis of Dr. Gannon’s opinion. Cf. Watters v. Hubbard, 725 F.2d 381, 386 (6th Cir.), cert. denied, 469 U.S. 837, 105 S.Ct. 133, 83 L.Ed.2d 74 (1984) (admitting psychiatrists’ testimony that defendant had admitted the offenses with which he was charged, “where the evidence was admitted not for the purpose of showing guilt, but to cross-examine and test the psychiatrists as to the bases for their expert opinions”). We need not resolve the issues raised by the parties. Instead, we hold that, even if the district court erred in admitting Dr. Gannon’s testimony, the error was harmless beyond a reasonable doubt. The confession related by Dr. Gannon was only one of three admitted at trial. The first was the confession Bartlett made to Officer White and Sheriff Schweitzer several hours after the incident. That confession, which we have found was properly admitted, see part 3 supra, was already in evidence when Dr. Gannon testified. The second confession was that related by Dr. Gannon, which is here at issue. The third, admitted in evidence after the first two, was given from the stand by Bartlett himself. Thus, we find that admission of Bartlett’s statements to Dr. Gannon was harmless beyond a reasonable doubt. Cf. United States v. Zink, 612 F.2d 511, 515-16 (10th Cir.1980) (finding admission of psychiatrist’s testimony relating statements made by defendant as to his guilt did not constitute “plain error” because defendant had already testified to the substance of them). E. Alleged Prior False Accusation of Rape Bartlett contends that the trial court erred in refusing to admit evidence concerning an alleged prior false accusation of rape made by Janis. The accusation first arose in the context of Bartlett’s motion for dismissal as a result of pre-indictment delay. In support of that motion, Bartlett alleged that in the intervening period between the incident and the federal indictment, Frank Hawk Eagle had died. Bartlett contended that the loss of Hawk Eagle’s testimony was prejudicial because Hawk Eagle would have testified that several months before the incident, he (Hawk Eagle) and a friend were in a parked car with Janis; that Janis had consensual intercourse with the friend; that Hawk Eagle then had intercourse with Janis, and that Janis thereafter falsely accused him of rape. On remand to the trial court, Bartlett again raised the issue seeking a pre-trial ruling on the admissibility of evidence showing that Janis had falsely accused Hawk Eagle of rape. The court inquired as to the precise nature of the testimony Bartlett would, offer. Bartlett responded that he would offer the testimony of Homer Billy Cook, with whom Janis had lived. Cook would testify that sometime between 1975 and 1978 Janis had alleged Hawk Eagle raped her and that nothing ever came of the allegation. Bartlett also indicated that Janis would testify that she told her parents of the incident and that her parents told the police but then decided not to press charges because the other individual in the car would not cooperate with any investigation. Trial Transcript at 146. Finally, Bartlett indicated that he would offer the testimony of a private investigator who had searched the relevant law enforcement and court records and determined that Janis never formally lodged a complaint about the matter. Trial Transcript at 22. The trial court refused to admit the evidence, finding that its probative value and relevance was very small. The court noted that the probative value was directly related to the strength of the evidence tending to show that the charge was in fact false. The court found that it was very doubtful the evidence would convincingly show falsity. In addition, the court found that, even if the evidence of falsity were stronger, the probative value of the evidence would still depend on the inference that, because the victim made a false accusation in the past, the instant accusation is also false. Yet, because the circumstances of the two incidents were so different, the value of the inference to be drawn was minimal. Bartlett contends that the court erred in refusing to admit the evidence. Specifically, he contends that, although Federal Rule of Evidence 412 generally bars evidence of a victim’s past sexual behavior, it contains an exception allowing admission of evidence that “is constitutionally required to be admitted.” Fed.R.Evid. 412(b)(1). He presumably relies on the Sixth Amendment right of confrontation as imposing a constitutional right to impeach the victim with her alleged prior false allegations. Initially, we note that there is a question whether Rule 412 reaches the use of a prior false accusation of rape for impeachment purposes. It has been suggested that prior false accusations are not the “evidence of a victim’s past sexual behavior,” intended to be covered under Rule 412, see 23 Wright and Graham, Federal Practice and Procedure § 5384 p. 546-47 (West 1980) (citing Hearing on H.R. 1466 and other bills before the Criminal Justice Subcommittee of the House Judiciary Committee, 94th Cong., 2d Sess., 1976, p. 83), but are more properly analyzed under Rule 608(b). We need not, however, address the issue because under either rule the inquiry is the same. Under either rule, “[t]he Sixth Amendment to the Constitution guarantees the right of an accused in a criminal prosecution ‘to be confronted with the witnesses against him.’ ” Davis v. Alaska, 415 U.S. 308, 315, 94 S.Ct. 1105, 1110, 39 L.Ed.2d 347 (1974). This right “includes the right to cross-examine witnesses to attack their general credibility or to show their possible bias or self-interest in testifying.” Hughes v. Raines, 641 F.2d 790, 792 (9th Cir.1981) (citing Davis, 415 U.S. at 316, 94 S.Ct. at 1110). Admission of all evidence that is the least bit probative of credibility is not, however, always constitutionally required. For example, prior to the enactment of Federal Rule of Evidence 412, this Court found evidence concerning the victim’s past sexual conduct offered for impeachment purposes inadmissible due to its minimal probative value and its highly prejudicial effect. Despite acknowledging that the evidence may have been logically relevant, we found that its exclusion did not deprive the defendant of a constitutional right. Unit ed States v. Kasto, 584 F.2d 268, 271-72 (8th Cir.1978), cert. denied, 440 U.S. 930, 99 S.Ct. 1267, 59 L.Ed.2d 486 (1979); cf. Fed.R.Evid. 403 (allowing exclusion of relevant evidence if its probative value is substantially outweighed by the danger of unfair prejudice). Davis v. Alaska, 415 U.S. 308, 94 S.Ct. 1105, 39 L.Ed.2d 347 (1974), is consistent with this view. In that case, a juvenile testified on direct examination linking the defendant with a safe stolen from a bar. The defendant then sought to cross-examine the juvenile concerning two prior delinquency adjudications for burglary. The defendant argued that the jury could have inferred from the adjudications that the juvenile may have testified out of concern that his probation would be jeopardized or to shift suspicion away from himself. The Supreme Court held that it was constitutional error to deny the defendant the right to cross-examine concerning the juvenile adjudications. In so holding, however, the Court noted that the precluded cross-examination concerned the “possible biases, prejudices, or ulterior motive of the witness as they may relate directly to the issues or personalities in the case at hand.” Id. at 316, 94 S.Ct. at 1110. Such evidence, the Court found, is “always relevant as discrediting the witness and affecting the weight of his testimony.” Id. In his concurrence, Justice Stewart emphasized that: the Court neither holds nor suggests that the Constitution confers a right in every case to impeach the general credibility of a witness through cross-examination about his past delinquency adjudications or criminal convictions. Id. at 321, 94 S.Ct. at 1112-13. Applying Davis to a case very similar to the instant case, the Ninth Circuit found that evidence of a prior false accusation of rape made by the victim against a third party was intended to be used “to attack the general credibility of the victim on the basis of an unrelated prior incident.” Hughes, 641 F.2d at 793. In light of the minimal probative value of the prior accusation evidence, the Court held that the district court did not abuse its discretion prohibiting cross-examination on the subject. Id. at 792-93. Similarly, in the instant case, we find that the evidence of the alleged prior false accusation of rape was offered solely to attack the general credibility of Janis. In addition, we agree with the district court that its probity in that regard is very weak. Accordingly, we hold that the district court properly refused to admit the evidence. F. Pre-Indictment Delay Bartlett contends that the district court erred in refusing to dismiss the indictment for pre-indictment delay. In reversing the district court’s original ruling granting Bartlett’s motion for pre-indictment delay, this Court explicitly recognized the record before it at the time was limited and that at trial “there may be additional evidence presented that Bartlett sustained actual and substantial prejudice as a result of the loss of the witnesses.” Bartlett, 794 F.2d at 1294. Therefore, we stated that “the district court is free to reevaluate whether the delay had caused Bartlett such prejudice as to impair the fairness of the trial.” Id. At the close of evidence in the trial, Bartlett’s counsel moved the court to dismiss the case for pre-indictment delay. In support of the motion, he stated that the only additional prejudice to Bartlett not present when this Court originally considered the motion resulted from two factors. First, he represented that in the intervening period, Officer Lewis White, one of the law enforcement officials to whom Bartlett confessed to the incident, had suffered a stroke and had become unavailable as a witness. The government contested Officer White’s unavailability and stated to the court that “although Louis White was not present here physically, we’ve had a plane waiting and in an hour and a half notice we could have flown him here and he could have been present.” Trial Transcript at 221. It is, however, unnecessary to resolve the conflict. Officer White’s testimony, as revealed during the voluntariness hearing held in 1984, was not at all helpful to Bartlett. See, e.g., Transcript of October 2, 1984, hearing at 29-30 (testimony of Officer White relating Bartlett’s confession). In addition, the record indicates that Officer White’s testimony would have substantially duplicated the testimony of Sheriff Schweitzer. See, e.g., id. at 40 (testimony of Sheriff Schweitzer relating Bartlett’s confession). Thus, even assuming Officer White became unavailable as a witness, Bartlett would have suffered no “actual and substantial prejudice as a result.” Bartlett, 794 F.2d at 1294. Second, Bartlett’s counsel argued that in the intervening period Tribal Court records were lost or destroyed. He contended that the records would have substantiated Bartlett’s claim that Janis had falsely accused Frank Hawk Eagle of rape. Yet, in light of our holding concerning the admissibility of the alleged prior false accusation, it is difficult to discern the prejudice to Bartlett resulting from the loss of the records. Moreover, even assuming that the unavailability of the records somehow prejudiced Bartlett as to the false accusation issue, the prejudice would be no greater than that already taken into account in our prior opinion inasmuch as that opinion assumed Hawk Eagle’s testimony would have been admissible. See Bartlett, 794 F.2d at 1292-93. Thus, we hold that the district court did not err in finding that “there has been no showing that wasn’t present or that would change the rationale and the legal conclusion * * * that there was no substantial * * * prejudice in conducting the defense,” Trial Transcript at 221, and affirm its denial of Bartlett’s motion to dismiss for pre-in-dictment delay. III. Bartlett’s case raises several very difficult and weighty issues. Resolution of those issues is complicated by the long and checkered procedural history of the case and by Bartlett’s mental state, which can only be characterized as troubled. Indeed, at trial, there was essentially uncontradict-ed testimony that Bartlett “demonstratefs] at times some significant distortions in the way he perceives what many of us view as reality.” Trial Transcript at 190 (Testimony of Dr. Gannon). Yet, Bartlett did not allege he was insane at the time of the acts charged and the district court found him competent to stand trial. Moreover, the record contains no evidence that the government sought to have Bartlett hospitalized pursuant to 18 U.S.C. § 4244, as one who has been found guilty of a crime but may presently “be suffering from a mental disease or defect for the treatment of which he is in need of custody for care or treatment in a suitable facility.” Id. Similarly, the record contains no evidence that the director of the facility in which Bartlett is incarcerated has sought to transfer him to a more suitable facility for treatment, or that Bartlett would object to such a transfer. Cf. 18 U.S.C. § 4245 (providing for prisoner challenge to such a transfer). Despite these facts, the presentence investigation report submitted by the probation service concludes: “Numerous psychiatric evaluations have found the defendant competent but schizophrenic. It would appear that Mr. Bartlett does not have the wherewithall to exist in the open society, consume his prescribed medications and exist without further unlawful behavior.” Presentence Investigation Report at 7. Moreover, in its brief and again at oral argument, the government candidly stated that it based its decision to prosecute on assurances from state penal authorities that Bartlett continues to pose an unreasonable risk to society. See Brief of Appel-lee at 12-13. Thus, the Court is concerned that, despite the fact that Bartlett has not been treated as mentally ill to this point, his release will be delayed because officials believe his psychiatric condition poses a substantial risk of harm to society. The federal criminal law is not, however, a proper vehicle for dealing with those who, by reason of mental disorder, pose a risk to the community. If Bartlett is currently suffering from a mental disease or defect, the recently enacted Insanity Defense Reform Act is clear that the director of the facility in which he is incarcerated may direct that he be transferred to a “suitable facility for care or treatment.” 18 U.S.C. § 4245. If, during the course of such treatment, the director of the treatment facility certifies that Bartlett’s sentence is about to expire and that he “is presently suffering from a mental disease or defect as a result of which his release would create a substantial risk of bodily injury to another person or serious damage to property of another,” 18 U.S.C. § 4246(a), then the government should follow the explicit procedures set forth by Congress in 18 U.S.C. § 4246. In this manner, the interests of both society and Bartlett will be protected. AFFIRMED. . Prior to granting the motion to dismiss for pre-indictment delay, the district court granted a motion for a psychiatric examination. Following the examination a report was submitted to the court stating that Bartlett suffered from a schizophrenic disorder "which seems pretty well compensated at the present time.” The report continued: There is no clear evidence of acute psychosis but with his history and flat affect, and the presence of looseness of association, my diagnosis of schizophrenia, residual, chronic, seems to be appropriate. He is not acutely delusional at this point and he is not having any hallucinations; thus, his treatment is being effective. He seems to have a good understanding of his present situation and seems to understand the legal aspects of his problems and I consider that he is competent to stand trial and assist his attorney in his own defense. At this point he is able to differentiate right from wrong and he reported that to rape a person is a bad action. Nevertheless, he minimized the importance of his actions by saying that he never raped anybody. I wouldn’t be able to make an assessment at this point as to whether or not he was insane or unable to understand right from wrong at the time of the crime as this occurred too many years ago. I’m not sure that the description of the event has been rehearsed by the patient after multiple reports to different interviewers. It seems that at the time of the crime, John was on medication and by the description of events, he stated that he was on his way to get a refill on his meds when he felt the urge to commit the crime. He was also under a lot of stress, as apparently he was going through a divorce but it is not clear what his mental condition was at the time of the crime. . Because the Court found that Bartlett had not made an adequate showing of actual prejudice, it did not pass upon the district court's finding that the government’s delay was "an intentional device to gain a tactical advantage over the accused.” The Court did, however, comment that it had "difficulty finding in the government’s decision to delay indicting Bartlett an appropriate governmental interest.” United States v. Bartlett, 794 F.2d 1285, 1294 (8th Cir.1986). . Concerning the question whether the district court had jurisdiction, Bartlett now argues that the Supreme Court erred in finding exclusive jurisdiction in the federal government to try crimes occurring on the Cheyenne River Sioux Reservation. In light of the Supreme Court’s clear holding to the contrary, see Solem v. Bartlett, 465 U.S. 463, 104 S.Ct. 1161, 79 L.Ed.2d 443 (1984), the argument is meritless. . At oral argument the government stated: The Court: My understanding from the government is that [Bartlett] will be given full credit for his state sentence. * * * ****** Government: That’s correct. ****** When I called the people in Fargo with the Bureau of Prisons I was able to determine that they had not credited him. They had given him 929 days that started in 1984. So then I started calling Washington. I finally got ahold of what was called a sentence computation expert, and he advised me that the policy was that if it was the exact same crime, he should get credit for it. And I advised him that in this particular case it is the exact same crime and the Bureau of Prisons should give credit for Mr. Bartlett. He said that since they hadn’t given him credit it couldn’t be the exact same crime. But, as late as yesterday, I talked with them and they did assure me and Ed Haines, with the Bureau of Prisons assured me that he would get credit for all of the state time. And that they would be sending me the computation sheet and I would be happy to write a letter to the court and provide them with that also. The government has since filed with the Court a sentence computation prepared by the Bureau of Prisons. The computation reflects that Bartlett has been given credit for time served in state prison from March 20, 1979, to his release by order of the district court on April 7, 1985. In addition, the presentence investigation report indicates that in June of 1986, Bartlett was admitted to the mental health unit of the South Dakota Human Services Center because his condition had deteriorated and he was not taking his medication. While at the center, Bartlett allegedly attempted to rape a staff member. The state then filed a criminal complaint concerning the matter but did not pursue the matter further when it learned that this Court had reversed the district court’s dismissal of the federal indictment. On September 5, 1986, Bartlett was discharged from the state mental health unit to federal custody. He has remained in federal custody since that time. . This Court has addressed the distinction between competence and sanity. Whether a person charged with a crime is mentally competent to stand trial is a discrete question, governed by different medical and legal standards from the question of mental responsibility. To be competent to stand trial a defendant must have, at the time of his trial, "sufficient present ability to consult with his lawyer with a reasonable degree of understanding — and ... a rational as well as factual understanding of the proceedings against him.” A claim that the defendant was not criminally responsible, on the other hand, is unconcerned with the defendant’s understanding of his situation at the time of trial, but is directed entirely to his capacity to understand and to control his conduct at the time of the commission of the offense. Hinkle v. Scurr, 677 F.2d 667, 669 (8th Cir.), cert. denied, 459 U.S. 1040, 103 S.Ct. 456, 74 L.Ed.2d 609 (1982) (quoting United States v. Taylor, 437 F.2d 371, 375 (4th Cir.1971)). . It is important to distinguish psychiatric evidence offered in mitigation of general culpability from psychiatric evidence offered to show absence of a specific mental state which is an element of the crime charged. As a district court has stated: In fact, “diminished responsibility” * * * has generally referred to a defense based on a showing that the accused suffered from an abnormality of mind that "substantially impaired his mental responsibility.” See Cooper, Diminished Responsibility — "Borderline Insanity" Direction, 49 J.Crim.L. 118 (1985). “Diminished capacity,” as opposed to “diminished responsibility,” is the term most often used by American courts in referring to defenses aimed at negating specific intent, although this term has also been used in referring to a defense offering evidence of mental disease or defect to show mitigating circumstances. United States v. Frisbee, 623 F.Supp. 1217, 1221 n. 2 (N.D.Cal.1985); see also Arenella, The Diminished Capacity and Diminished Responsibility Defenses: Two Children of a Doomed Marriage, 77 Colum.L.Rev. 827 (1976). This opinion shall refer to "diminished responsibility” as mitigating culpability and to "diminished capacity” as negating the specific intent required for the crime charged. . Rule 704(b), enacted as part of the Comprehensive Crime Control Act of 1984, Pub.L. No. 98-473 § 406, reprinted in 1984 U.S.Code Cong. & Admin.News (98 Stat.) 2067-68, provides: No expert witness testifying with respect to the mental state or condition of a defendant in a criminal case may state an opinion or inference as to whether the defendant did or did not have the mental state or condition constituting an element of the crime charged or of a defense thereto. Such ultimate issues are matters for the trier of fact alone. The trial court found that although the relevant conduct occurred prior to enactment of the rule, its application did not violate the constitutional prohibition against ex post facto laws because it represented a procedural, as opposed to a substantive change in the applicable law. See United States v. Prickett, 790 F.2d 35, 37 (6th Cir.1986) (concluding that the change in Rule 704(b) was procedural and its application was not an ex post facto violation); United States v. Mest, 789 F.2d 1069, 1072-73 (4th Cir.), cert. denied, 479 U.S. 846, 107 S.Ct. 163, 93 L.Ed.2d 102 (1986) (same). We agree and affirm the district court in this respect. . Briggs stated: I particularly remember the incident because we had a mental patient back there that was in a real bad state of mind. He talked backward and he was extremely strong and he had to be restrained and we had to actually give him his shot through the jail, through the bars. His brother had been into my office and we had discussed the case. He was going to be transferred to Yankton. His brother left. A few minutes later they came rushing ba