Full opinion text
Opinion MOSK, J. This is an automatic appeal from a judgment of death imposed under the 1978 death penalty law (Pen. Code, §§ 190.1 et seq., 1239, subd. (b)), consolidated with a petition for a writ of habeas corpus. Defendant was convicted of committing lewd and lascivious acts on a person under 14 years of age (§ 288), oral copulation (§ 288a), and first degree murder (§§ 187, 189). The jury found true allegations charging the use of a dangerous weapon (a knife) under sections 12022, subdivision (b), and 12022.3. It also found true the special circumstance allegation of murder in the commission of lewd and lascivious acts (§ 190.2, subd. (a)(17)(v)) and oral copulation (§ 190.2, subd. (a)(17)(vi)). The jury fixed the punishment at death, and the trial court entered judgment accordingly. Because we find no reversible error, we aifirm the judgment in its entirety and deny the petition for habeas corpus. I. Facts A. Guilt Phase Defendant was the stepfather of the 12-year-old victim, Monique. She was found murdered in her apartment at 5 a.m. on March 7, 1982. Defendant had attended a party in the apartment below hers, and had left about 45 minutes to an hour before the murder is believed to have taken place. Defendant was arrested when he appeared at the murder scene later that morning. 1. Prosecution Evidence Defendant and Joan, the mother of Monique, had agreed to end their marriage in February 1982. He had left for San Francisco, but returned to Los Angeles in late February to help Joan move to a new apartment. A few days before the murder they had quarrelled, in part over his right to make decisions affecting her children, and he left her apartment vowing something to the effect of “you’ll pay for this.” There was some enmity as well between defendant and Monique. On the night of the murder defendant attended a party in the apartment directly beneath that of Joan and Monique. During the party he was observed consuming alcohol and possibly cocaine and marijuana. He left the party sometime between 3 and 4 a.m. About 45 minutes to an hour after his departure, Laurie Snow, a resident of that apartment, heard a female voice coming from the apartment above, shouting “stop it” and “don’t,” and then screaming loudly and crying. Monique had been left in that apartment by her mother and was babysitting for the child of Lynn Celestin, a friend of Joan, while the two women went dancing. Celestin checked in with Monique at approximately 3:50 a.m., and when she left she heard Monique bolt the door. Carolene Turner, who lived in the apartment adjacent to that of Monique, testified that she heard the voices of a man and woman about the time of the murder through the common wall of the two apartments. She heard the woman call out a name beginning with the letter “R,” and she thought the name had two syllables. At the time of the murder defendant was using the alias “Ron Woodland.” There is conflicting evidence as to whether defendant was sometimes called “Ronnie,” though apparently Monique never called him Ronnie. At approximately 5 a.m. Joan returned home and, failing to arouse Monique to answer the door, asked Gary Eisenhauer, a neighbor, to force the door open. They found Monique lying dead on the floor, naked from the waist down, with a kitchen butcher knife in her side. Monique’s death, according to autopsy reports, was caused by stab wounds and by ligature strangulation with a wide object, probably the sweat pants found near her body. Either cause would have been sufficient to kill her. Spermatozoa was found in her mouth and on her shirt, and contusions around her mouth were consistent with her having been forced to perform oral sex. Detectives arrived and began their investigation. At approximately 11 a.m. defendant appeared on the scene, apparently asking what had occurred. Detective Thies had been informed by Joan that defendant was an escaped convict and that she suspected him of committing the murder. Thies noticed discolorations on defendant’s shirt that appeared to be bloodstains, and fresh gouge marks on the back of his hands. He placed defendant under arrest. On further examination, defendant was found to have fresh abrasions just above the knee on the inner leg; there were, however, no tears or rips in his jeans. An examination of the apartment in which Monique was murdered revealed three slips of paper with names and telephone numbers written on them. It is uncontested that these notes were in defendant’s handwriting. Paula Struppa, at the time a friend of defendant, testified that the two of them had gone to Joan and Monique’s apartment on the morning before the murder, and that defendant had written down the telephone numbers obtained from Joan on scraps of paper. She knew that one of the numbers was that of a “Bob”; one of the three notes found in the apartment did indeed have the number of “Bob.” Moreover, both Joan and Lynn Celestin testified that the apartment floor was clean when they had left earlier in the evening, and the notes had not been there. The prosecutor hypothesized that the notes had fallen out of defendant’s pockets when he lowered his pants as he was forcing Monique to orally copulate him. A forensic pathologist testified that the abrasions on defendant’s inner leg were consistent with a struggle between defendant and victim, as defendant pulled down his pants to expose his penis and forced Monique to perform oral sex. The abrasions could have been caused by a lateral motion of Monique’s head, in an attempt to resist, forcing the inner lining of defendant’s pant leg to rub against his legs. The pathologist also testified that the gouge marks on defendant’s left hand were consistent with marks that could have been made by the victim’s nails as she attempted to free herself from her murderer’s stranglehold. Blood, semen, and saliva stains were found on defendant and the victim. These stains were analyzed according to both conventional ABO typing, and “PGM subtyping” using a technique known as electrophoresis. The evidence that emerged from these tests supported the prosecution’s case in several ways. Defendant had type A blood, with type A and H antigens present, and Monique had type B blood, with type B and H antigens present. Defendant was a “nonsecretor,” that is, the antigens found in his blood did not appear in his other bodily fluids. Approximately 25 percent of the population are nonsecretors. It was not known for certain if Monique was a secretor, but analysis of what was probably her own perspiration on her shirt indicates that she was. An analysis of the bloodstains on defendant’s shirt tested positive for type B as well as type A antigens. The type B antigens could not have come from defendant, but could have come from Monique. Paula Struppa testified that when she gave the shirt to defendant, the morning before the murder, it had no bloodstains. The presence of amylase, an enzyme found in large concentrations in saliva, was found on Monique’s right nipple but not on her left one, leading the pathologist to surmise that the murderer had put his mouth on her right breast. The amylase showed no antigenic activity, indicating that it was deposited by a nonsecretor. Spermatozoa and amylase with type B and H antigens were found on the shirt that Monique was wearing. The serologist hypothesized that the murderer ejaculated semen into Monique’s mouth and that she spit out a mixture of semen and saliva. The presence of these and only these antigens could be accounted for in several ways: either the saliva belonged to Monique and the sperm from a nonsecretor, or the sperm came from a type B or type O secretor. It could therefore have been deposited by 73 to 74 percent of the male population. The stains were also subject to electrophoretic testing and analysis by PGM subtyping. Electrophoresis can identify the three different types and ten subtypes of the PGM enzyme. Defendant was a “two plus one” subtype; Monique was a “one plus.” The stain on Monique’s shirt tested for “two plus one.” A Los Angeles serologist calculated that approximately 20 percent of the population belonged to that subtype. Multiplying this proportion by the 73 percent of the male population that could have deposited the semen stain according to conventional ABO typing yielded a figure of 14.6 percent. As it seems probable that the murderer was a nonsecretor, he would also belong to a group of 5 percent of the male population who were both “two plus one” subtypes and nonsecretors (20 percent multiplied by 25 percent). Defendant belongs to this group. 2. Defense Evidence Dr. Marvin Rappaport, a dermatologist, testified that he examined photographs of defendant’s leg injuries taken shortly after defendant’s arrest and, on the basis of their coloration, estimated they were probably three to seven days old. He had no definite opinion as to cause of the injuries, but said they were inconsistent with the injuries that would have resulted if defendant had fallen on his knees on a hard surface. Dr. Benjamin Grunbaum testified as to the unreliability of conventional electrophoresis to perform PGM subtyping, identifying several methodological deficiencies in the electrophoretic testing. He conceded that he had a commercial interest in a patent that performs an alternative means of testing for PGM subtyping, the so-called “Isoelectric Focusing Method.” Defendant also called Marquita Woolford, a neighbor of defendant and Monique at the previous apartment. She testified that defendant was a good parent who tried to help his children. 3. Rebuttal Testimony In rebuttal, the prosecution called Detectives Thies and Olson to testify to tape-recorded interrogations of defendant during the two days after he was arrested. Portions of the statements were played to the jury. The statements recounted defendant’s explanation of his leg injuries, namely, that he received them when he went to the house of his friends Charles Smart and Paula Struppa after he left the party on the night of the murder, and that he fell down in their driveway. The statements were made to rebut testimony of Dr. Rappaport that the injuries were three to seven days old. The statements were also inconsistent with the testimony of Paula Struppa that defendant had not visited them that night, and that, had he knocked on their door, she would have been awakened by her barking dog. Furthermore, the statements contradicted Dr. Rappaport’s testimony that the injuries most likely did not occur from defendant’s falling down on his knees. The jury returned a verdict of guilty of first degree murder with special circumstances, as well as of lewd and lascivious conduct and forcible oral copulation. B. Penalty Phase The prosecution introduced documentary evidence of six prior felony convictions of defendant. Three were for breaking and entering with intent to commit petit larceny, committed in Florida between 1964 and 1966; one was for escape from a minimum security Florida prison in 1968; one was for armed robbery of Lee’s Liquor store in 1977; and the final one was for escape from the Pilot Rock correctional facility in San Bernardino County in 1979. The prosecutor called Rose Lee, the proprietor of the liquor store defendant had robbed. She testified that defendant grabbed her by the neck, choking her, and dragged her from the front of the store toward the cash register. His accomplice wielded a shotgun and threatened Mrs. Lee’s husband if he did not hand over the money in the cash register. A Los Angeles police detective recounted that defendant had confessed to the robbery. A correctional officer from the Pilot Rock facility testified concerning defendant’s escape. Although defendant at the time expressed a preference for death rather than life imprisonment without parole, and wore jail clothes throughout the penalty phase despite defense counsel’s advice, defense counsel did put on some evidence in mitigation. Jerry Arline, assistant superintendent of the Florida correctional facility from which defendant had escaped, testified that the escape was a “walkaway” that involved no breaking or climbing, and that defendant was apprehended within a few hours. Defense counsel also called Gary Ducat, chief of classification services for the California Department of Corrections, to testify to the high level of security and difficulty of escape for prisoners in this state serving a sentence of life imprisonment without parole. Defendant’s mother, Carolyn Kaurish, testified briefly that she did not want her son to die in the gas chamber. She also expressed belief in her son’s innocence, stating that he would never kill a child and that he was good with children. In his closing argument defense counsel emphasized that the jury’s lingering doubt about defendant’s guilt could be a basis for sparing his life. II. Guilt Phase Issues A. Jury Selection Issues 1. Death Qualification of Jury Defendant contends the exclusion from the guilt phase of jurors categorically opposed to the death penalty deprived him of a jury composed of a representative cross-section of the community, in violation of his Sixth and Fourteenth Amendment rights. We have rejected such claims (People v. Melton (1988) 44 Cal.3d 713, 732 [244 Cal.Rptr. 867, 750 P.2d 741]), as has the United States Supreme Court (Lockhart v. McCree (1986) 476 U.S. 162, 174-176 [90 L.Ed.2d 137, 148-150, 106 S.Ct. 1758]). 2. Denying Challenge for Cause Defendant contends that a prospective alternative juror who exhibited bias during voir dire should have been removed for cause. When the court refused defendant’s for-cause challenge, he was compelled to exercise a peremptory challenge. The diminution of available peremptory chailenges, he argues, led to the selection of a jury less favorable to him. We find no error. The prospective alternate juror in question, Ms. Lamprich, gave conflicting testimony as to her ability to be unbiased. On the one hand, she stated that she had several relatives employed as police officers and might tend to give greater credence to the testimony of such officers. On the other, she stated her intention to “try to be an impartial juror.” In general, the qualification of jurors challenged for cause are “matters within the wide discretion of the trial court, seldom disturbed on appeal.” (Odle v. Superior Court (1982) 32 Cal.3d 932, 944 [187 Cal.Rptr. 455, 654 P.2d 225].) When, as here, a juror gives conflicting testimony as to her capacity for impartiality, the determination of the trial court on substantial evidence is binding on the appellate court. (People v. Bittaker (1989) 48 Cal.3d 1046, 1089 [259 Cal.Rptr. 630, 774 P.2d 659]; People v. Fields (1983) 35 Cal.3d 329, 356 [197 Cal.Rptr. 803, 673 P.2d 680]; People v. Linden (1959) 52 Cal.2d 1, 22 [338 P.2d 397].) We conclude that the trial court did not abuse its discretion in denying the challenge for cause of prospective juror Lamprich. B. Probable Cause for Arrest When defendant appeared at the crime scene at 11 a.m., approximately six hours after the murder had occurred, he was placed under arrest by Detective Thies. Defendant filed an unsuccessful pretrial motion to suppress the evidence resulting from the arrest, primarily serological evidence obtained from the shirt he was wearing at the time. He argued that Detective Thies lacked probable cause to arrest him, and now reiterates that claim. We disagree. Probable cause for arrest exists when facts known to an arresting officer “ ‘ “would lead a man of ordinary care and prudence to believe and conscientiously entertain an honest and strong suspicion that the person is guilty of a crime.” [Citations.]’ ” (People v. Superior Court (Wells) (1980) 27 Cal.3d 670, 674 [165 Cal.Rptr. 872, 612 P.2d 962].) In that case, we sustained the arrest of the defendant who was standing across the street from the murder victim when the officer arrived on the scene. The officer, who knew the defendant, was aware that he had a motive for murdering the victim and had a propensity for violence. During a patdown prior to the arrest, the officer observed bloodstains on the defendant’s clothing that could have resulted from the victim’s wounds. We held that on such facts a reasonable person could entertain a strong suspicion that the defendant had committed the murder. The present case bears several similarities to Wells, supra, 27 Cal. 3d 670. Detective Thies knew the following facts at the time of the arrest: (1) defendant’s ex-wife suspected defendant of being the murderer; (2) some animosity existed between defendant and victim; (3) defendant had keys to the victim’s apartment, and there was no evidence of forced entry other than that of Gary Eisenhauer after the victim failed to respond; (4) defendant had left an apartment in the same building shortly before the murder was committed; (5) defendant had discolorations on his shirt that appeared to be blood and might have originated from the victim’s knife wounds; (6) defendant had apparently recent abrasions on his left hand, which could have been caused by the victim’s fingernails as she struggled against her murderer’s stranglehold; and (7) according to defendant’s ex-wife, defendant was an escapee from state prison. We conclude that these facts, taken in their totality, were such as to allow a reasonable person to strongly suspect defendant of being the murderer, and that the arrest was therefore based on probable cause. C. Prosecutorial Misconduct Combined With Ineffective Assistance of Counsel and the Court’s Failure to Give Sua Sponte Admonitions Defendant cites several instances of prosecutorial misconduct to which his counsel failed to object, thereby assertedly constituting ineffective assistance of counsel. Defendant would also have us find, in each instance of prosecutorial misconduct, that the court failed to fulfill a sua sponte duty to admonish the jury. He contends these three elements combine to render the trial unfair. 1. Prosecutorial Misconduct Defendant raises a number of instances of misconduct, primarily remarks by the prosecutor during examination of witnesses and at closing argument that were assertedly both irrelevant and prejudicial. These included references to defendant’s involvement in drug dealing, his use of an alias, his threatening an apartment manager with violence, and his possession of a false driver’s license. The prosecutor also argued that defendant was carrying the keys to the victim’s apartment. We find that the prosecutor’s comments during closing argument on defendant’s drug dealing were not misconduct. The remarks were based on evidence properly admitted and were for the legitimate purpose of discrediting the testimony of Gary Eisenhauer, testimony that could have undermined the People’s case. Among other things, Eisenhauer testified that he saw defendant leave the apartment building where the murder took place before the murder occurred, and that the shirt that Monique had been wearing when Eisenhauer discovered her was different from the one she was wearing when the police arrived—a fact which, if true, could undermine the prosecution’s serological evidence. The prosecution was attempting to show that Eisenhauer, defendant, and their mutual friend, David Pelletier, had been involved in a drug-dealing operation, and that this involvement gave Eisenhauer a motive to lie. Such comments did not exceed the wide latitude given prosecutors to discuss and draw inferences from evidence presented at trial. (People v. Beivelman (1968) 70 Cal.2d 60, 76-77 [73 Cal.Rptr. 521, 447 P.2d 913].) In other instances, particularly the prosecutor’s reference during closing argument to defendant’s possession of the keys to Monique’s apartment, a fact not in evidence, the case for finding prosecutorial misconduct is stronger. However, prosecutorial misconduct not subjected to timely objection by defense counsel is waived on appeal, unless the reviewing court concludes that an admonition could not have cured the harm resulting from the misconduct. (People v. Green (1980) 27 Cal.3d 1, 34 [164 Cal.Rptr. 1, 609 P.2d 468].) We find here that all the instances of arguable misconduct involved matters tangential to the People’s case, and any resulting harm could have easily been cured by admonition. 2. Ineffective Assistance of Counsel The claims of ineffective assistance of counsel arising from failure to object to the foregoing instances of prosecutorial misconduct are equally unmeritorious. To find ineffective assistance of counsel a court must determine that counsel’s performance was deficient, falling “ ‘below an objective standard of reasonableness . . . under prevailing professional norms’ ” (People v. Ledesma (1987) 43 Cal.3d 171, 216 [233 Cal.Rptr. 404, 729 P.2d 839], quoting Strickland v. Washington (1984) 466 U.S. 668, 688 [80 L.Ed.2d 674, 693, 104 S.Ct. 2052]), and that there is a reasonable probability that “ ‘but for counsel’s unprofessional errors, the result of the proceeding would have been different.’ ” (Ledesma, supra, at p. 218, quoting Strickland, supra, at p. 694 [80 L.Ed.2d at p. 698].) Defendant fails to meet the first prong of this test. With regard to the prosecutorial remarks on defendant’s past misconduct, defense counsel could have reasonably concluded that such evidence was tangential to the case and that objections would serve only to accentuate defendant’s negative qualities in the minds of the jurors. (See People v. Gordon (1990) 50 Cal.3d 1223, 1256, fn. 7 [270 Cal.Rptr. 451, 792 P.2d 251].) Counsel’s failure to object to the prosecutor’s reference to defendant’s possession of keys to the victim’s apartment on the night of the murder is not ineffective assistance for a slightly different reason. The People’s case did not, in fact, turn on defendant’s possession of the keys to the apartment. Instead, the prosecution contended that the victim had deadbolted the door, and that the murderer must have been someone who was known to the victim because she had released the deadbolt. Moreover, it is clear from other testimony that the door was self-locking, so that defendant would not have needed a key to lock the door when he left the apartment. Failure to object to this instance of prosecutorial misconduct was therefore harmless. 3. Duty of Trial Court to Render an Admonition Sua Sponte Finally, defendant contends that even if we do not find ineffective assistance, we must conclude that the trial court should have given sua sponte a limiting instruction with respect to evidence of defendant’s prior drug dealing and violent coercive behavior unrelated to the crime, particularly in light of the prosecutor’s comments on this evidence during closing argument. We do not agree. In People v. Collie (1981) 30 Cal.3d 43, 63-64 [177 Cal.Rptr. 458, 634 P.2d 534, 23 A.L.R.4th 776], we held that the trial court had no sua sponte duty to instruct on the limited admissibility of evidence of past criminal misconduct. In People v. Milner (1988) 45 Cal.3d 227, 251-252 [246 Cal.Rptr. 713, 753 P.2d 669], we extended this rule to apply to evidence of defendant’s past misconduct whether or not criminal. As we explained, “ ‘Neither precedent nor policy favors a rule that would saddle the trial court with the duty either to interrupt the testimony sua sponte to admonish the jury whenever a witness implicates the defendant in another offense, or to review the entire record at trial’s end in search of such testimony.’ ” (Id. at p. 251, quoting People v. Collie, supra, at p. 64.) These decisions control the case before us. It is true that both cases recognize an exception to the foregoing no-duty rule when the prior crime or misconduct introduced by the prosecutor “is a dominant part of the evidence against the accused, and is both highly prejudicial and minimally relevant to any legitimate purpose.” (Collie, supra, at p. 64; Milner, supra, at pp. 251-252.) None of the arguable instances of defendant’s misconduct in this case was in any sense a “dominant part of the evidence.” 4. Other Instances of Prosecutorial Misconduct a. Attempted Impeachment of Dr. Grunbaum The prosecution sought to discredit an expert defense witness, Dr. Benjamin Grunbaum, who disputed the methods used by prosecution witnesses in obtaining electrophoretic evidence from blood, saliva and semen stains found on the victim and defendant. Toward the beginning of the cross-examination, the prosecutor asked Dr. Grunbaum if he had testified on the “losing side” in the trial of Angelo Buono, the so-called “Hillside Strangler.” Defendant’s objection was sustained, although he did not request a curative admonition. The prosecutor then ended that line of inquiry. Defendant now argues that the prosecutor’s question was improper and, by undermining a defense expert’s credibility, deprived him of a fair trial. He cites People v. McGreen (1980) 107 Cal.App.3d 504, 514-519 [166 Cal.Rptr. 360], in support of this contention. The claim is without merit. The present case is far removed from McGreen, in which the prosecutor persisted in making unfounded attacks on an expert witness’s honesty and ethical reliability, despite the court’s repeated sustaining of defense objections to that line of questioning. The McGreen court held that continued references to the witness’s commission of perjury constituted prejudicial error, in spite of the fact that the trial court admonished the jury to disregard such insinuations. (107 Cal.App.3d at pp. 517-518.) In the present case, the harm to Dr. Grunbaum’s reputation from the prosecutor’s question, if any, was slight. A reasonable juror would not be likely to interpret the fact that Dr. Grunbaum testified on the highly technical subject of the validity of electrophoretic testing, even on the losing side of a controversial case, as impugning his honesty or competence. Because an admonition would have cured whatever harm resulted from the improper question, failure to request such an admonition waives the issue on appeal. (People v. Green, supra, 27 Cal.3d at p. 34.) b. Failure to Rule on the Scope of Rebuttal Testimony and the Prosecutor’s Comment on the Absence of the Defense Serologist Defendant contends the court erred in failing to rule on whether his own serologist could be called by the prosecution as a rebuttal witness. He then contends the prosecutor compounded the error by commenting on the absence of the defense serologist in closing argument. Neither contention identifies prejudicial error. Defendant intended to call Carol Rhodes, a serologist whom he had used as a consulting expert. The prosecutor argued that once Rhodes took the stand she would be subject to cross-examination about any and all confidential communications between her and defense counsel. Defense counsel countered that the prosecution could inquire only into communications that had assisted her in forming her expert opinion. The court agreed with defendant. The prosecutor then asked whether he could call Rhodes on rebuttal, to obtain the same information the court was denying him on cross-examination. The court declined to rule on that issue. Defense counsel did not press the matter, but rested his case. On appeal, defendant contends the failure to rule on the scope of cross-examination deterred his counsel from calling Rhodes, thereby prejudicing his defense. Defendant’s lack of objection to the court’s omission to rule, however, precludes him from now raising the issue. (See People v. Rogers (1978) 21 Cal.3d 542, 547-548 [146 Cal.Rptr. 732, 579 P.2d 1048].) Prior to making his closing argument, defendant asked that the prosecutor be barred from commenting on Rhodes’s failure to appear at trial. He contended, as he does on appeal, that prosecutorial comment would impermissibly burden his exercise of the attorney-client privilege (People v. Bittaker, supra, 48 Cal.3d 1046, 1104), just as comment on a defendant’s failure to take the stand impermissibly burdens the privilege against self-incrimination (Griffin v. California (1965) 380 U.S. 609 [14 L.Ed.2d 106, 85 S.Ct. 1229 ]). The court ruled in defendant’s favor. Nevertheless the prosecutor, while not mentioning Carol Rhodes by name, referred to the absence of a defense serologist and used the pronoun “her.” Defendant maintains this is prejudicial error. We disagree. The prosecution is entitled to comment on the state of the evidence, including the lack of conflicting serological evidence. (See People v. Vargas (1973) 9 Cal.3d 470, 475-476 [108 Cal.Rptr. 15, 509 P.2d 959].) Since it is clear from the record that the jury was already aware that Carol Rhodes was the defense serologist, no prejudice resulted from the prosecutor’s use of the feminine pronoun when calling attention to the lack of conflicting testimony on the serological evidence. D. Admissibility of Tape-recorded Statements Defendant contends that certain tape-recorded statements he made to police detectives shortly after his arrest were wrongly admitted during the prosecution’s rebuttal. He asserts that the statements were irrelevant and, if relevant, were not a proper part of rebuttal. He further asserts that the prosecution compounded the error by arguing from the evidence during its closing statement, and making other prejudicial references to the unplayed portion of the tape. The taped statements related to the manner in which defendant incurred abrasions above and below his knees, which the police noticed shortly after his arrest. The People theorized that these abrasions resulted from the chafing of the inner lining of defendant’s pants against his leg, which, according to their theory, were pulled down above his knees as he sought to compel the victim to orally copulate him. The prosecution called a police pathologist to testify that photographs of defendant’s legs taken shortly after the murder indicated that the abrasions were fresh and were consistent with the prosecution’s theory of their origin. Defendant called a dermatologist, Dr. Rappaport, who testified from his own examination of photographs taken shortly after the arrest that the abrasions were brown and crusty, indicating they had healed significantly. From this he concluded the abrasions were in fact three to seven days old at the time the photographs were taken. In rebuttal, the People sought to introduce excerpts of taped interrogations of defendant by police detectives made shortly after his arrest. In the excerpts, defendant stated that after he left the party at Laurie Snow’s he went to the home of his friends, Charles Smart and Paula Struppa, that he was drunk, and that he incurred the leg injuries when he fell in their driveway. Playing these taped statements for the jury could have two effects. First, it would tend to discredit Dr. Rappaport’s testimony on the age of the injuries; it is unlikely that defendant would attempt to explain fresh injuries if the injuries were in fact several days old. Second, the excerpts would tend to show that defendant had fabricated an alibi: since the jury had heard from Paula Struppa earlier that defendant had not appeared at her house on the night or early morning of the murder, and that if he had knocked on her door she would have been awakened by her barking dog, the jury could conclude that defendant had lied to the police about his visit to her house after the party. Defendant conceded that the taped excerpts relating directly to the time and manner of his leg injuries were admissible. He objected, however, to the admission of statements he made of his intention to go to the house of Charles Smart and Paula Struppa, and of the claim that he knocked on their door. He argued in support of his objection, and argues now on appeal, that such statements are irrelevant because they do not strictly pertain to the manner in which he said he received the knee injury, and that because he did not testify, the statements could not be used for impeachment purposes. The court overruled his objection as to most of the excerpts, but did rule that the one statement that actually referred to defendant’s knocking on his friends’ apartment door should be excluded. Nonetheless, during the playing of the permitted portions of the tape the prosecutor inadvertently played the prohibited excerpt. 1. The Relevance of the Taped Excerpts Evidence showing that defendant made false statements at the time of his arrest is admissible to show consciousness of guilt. (People v. Kimble (1988) 44 Cal.3d 480, 496 [244 Cal.Rptr. 148, 749 P.2d 803].) This is true whether the prior statements are contradicted by the defendant’s statements at trial or by those of other witnesses. (Ibid.) Therefore, taped excerpts of defendant’s statements showing that he had fabricate an alibi were relevant. 2. Admissibility of the Evidence at the Rebuttal Phase Defendant next contends that evidence of his false alibi, even if admissible, is a material part of the prosecutor’s case, and therefore cannot be introduced during the rebuttal phase. As this court stated in People v. Carter (1957) 48 Cal.2d 737, 753 [312 P.2d 665], rebuttal testimony, as defined in former section 1093, subdivision (d), “does not include a material part of the case in the prosecution’s possession that tends to establish the defendant’s commission of the crime.” The reasons for this rule were threefold: “to assure an orderly presentation of evidence so that the trier of fact will not be confused; to prevent a party from unduly magnifying certain evidence by dramatically introducing it late in the trial; and to avoid any unfair surprise that may result when a party who thinks he has met his opponent’s case is suddenly confronted at the end of trial with an additional piece of crucial evidence.” (48 Cal.2d at p. 753.) We find in this case, however, that no error was committed. The statement relating to defendant’s knocking on the door of Charles Smart’s and Paula Struppa’s house was sufficiently related to the main thrust of the rebuttal evidence—the circumstances under which defendant claimed he received his leg injuries, as a means of discrediting Dr. Rappaport’s testimony—to be permitted on rebuttal. Moreover, even if the one statement inadvertently played by the prosecutor—in which defendant states that he did in fact knock on his friends’ front door—should have been excluded, the properly admitted evidence would still have revealed defendant’s fabricated alibi. The admission of that one additional statement told the jury nothing it did not already know, and therefore was not prejudicial. 3. References to the Tapes in Closing Argument Defendant complains of two types of misconduct arising from the prosecutor’s references to the taped statements. The first is the prosecutor’s use of improperly admitted evidence in closing argument. As we have discussed above, the taped excerpts played to the jury were correctly admitted. The prosecutor was therefore permitted to draw all reasonable inferences from that evidence in his argument. (People v. Beivelman, supra, 70 Cal.2d 60, 76-77.) The second class of claimed misconduct is more serious. During closing argument the prosecutor told the jury, without foundation, that the defense had attempted to prevent the prosecution from playing the tape in its entirety. Later the prosecutor told the jury he was certain they were “anxious to hear the rest of the tape, because it is inconsistent with defendant’s own defense.” Defendant argues that these two statements, based on facts not in evidence, might have caused jurors to believe that the tapes harbored damaging evidence, and that, indeed, the tapes recorded defendant’s confession to the crime. The prosecutor’s remarks were clear misconduct. They contained innuendo, based on facts not in evidence, that may have given rise to jury speculation regarding the unheard portions of the tapes. We do not agree, however, that these remarks, vague as they were, could have led a reasonable juror to conclude that defendant had actually confessed to the crime. In any event, defense counsel did not object to these remarks. Had he done so, the court might have cured their potential prejudice by, among other things, informing the jury that the prosecutor’s assertions were untrue. Having failed to object to the remarks, defendant has waived the point on appeal. (People v. Green, supra, 27 Cal.3d at p. 34.) E. Admission of Photographs Defendant next contends that photographs of the victim’s corpse admitted in evidence were irrelevant or, if not irrelevant, that their probative value was outweighed by their prejudicial effect. We disagree. The primary issue at trial was the identity of the murderer. The photographs were relevant to the issue of identity in several ways: two of the photographs showed marks underneath the victim’s chin, consistent with gouge marks made by her own fingernails as she attempted to fight off strangulation. The capacity of the nails to make such marks is probative of whether the gouge marks found on the back of defendant’s left hand could also have been inflicted by the victim in the course of her struggle. Two other photographs depicted salival foam extruding from the victim’s mouth, and hence supported the inference that the victim was capable of depositing saliva on defendant’s shirt. The photographs therefore helped to lay the foundation for the serological evidence that revealed fluids consistent with the victim’s blood type on defendant’s shirt. The photographs were neither particularly gruesome nor inflammatory, and the record shows that the trial court properly weighed their probative value and prejudicial effect, excluding some inflammatory autopsy photographs. The court did not abuse its discretion under Evidence Code section 352 in concluding the probative value of this evidence was not substantially outweighed by its prejudicial effect. Defendant contends that his willingness to concede all facts as to how the victim was murdered nullified or greatly diminished the probative value of the photographs. But, “If the facts to which the defendant has offered to stipulate retain some probative value, then evidence of such facts may be introduced.” (People v. Hall (1980) 28 Cal.3d 143, 152 [167 Cal.Rptr. 844, 616 P.2d 826].) In this case, the court could reasonably conclude that because the proof of the identity of the murderer relied heavily on inferences to be drawn from the presence of marks and fluids on defendant’s skin and garments, the photographic evidence was important in assisting the jury in weighing the plausibility of the prosecution’s theories. The photographic evidence was corroborative of the pathologist’s and the serologist’s testimony in a way that defense stipulations could not have been. (See People v. Milner, supra, 45 Cal.3d 227, 247.) Thus, the photographs were properly admitted. F. Attempts to Prove Third Party Culpability Defendant proposed to introduce evidence suggesting that a certain Jay-Jay Sheffner might have been the real murderer. The prosecutor made a motion in limine to exclude this line of inquiry, which the court granted. Defendant now argues that the ruling was prejudicial error. During the hearing on the motion, defense counsel told the court that he had been informed by David Pelletier, a friend and associate of defendant, that Joan and her daughter, the victim, had stolen an unspecified sum of money and a painting from Sheffner and then had bragged about it, and that Sheffner had told Pelletier he would “get even” with both mother and daughter. This incident allegedly took place a week or two before the murder. Pelletier assertedly also told counsel that Sheffner had a past history of child sexual molestation. Both these facts, counsel argued, pointed sufficiently to Sheffner as a possible murder suspect to permit his questioning Joan on the matter. The prosecutor, on the other hand, contended that any evidence of Sheffner’s alleged history of sexual molestation was either impermissible character evidence under Evidence Code section 1101, or impermissible hearsay, or both. In addition, the prosecutor claimed that according to his own interrogation of David Pelletier the alleged theft by the victim and her mother and Sheffner’s ensuing vow of revenge took place eight or more weeks before the murder. The incident was therefore too remote and insubstantial to link Sheffner with the murder. The principles of law are clear. In People v. Hall (1986) 41 Cal.3d 826 [226 Cal.Rptr. 112, 718 P.2d 99], we rejected the rule that evidence of third party culpability could be admitted only if there was a “substantial proof of a probability” of guilt. (Id. at p. 833.) Rather, we held that the standard for admitting evidence of third party culpability was the same as for other exculpatory evidence: the evidence had to be relevant under Evidence Code section 350, and its probative value could not be “substantially outweighed by the risk of undue delay, prejudice, or confusion” under Evidence Code section 352. (41 Cal.3d at p. 834.) In addition to articulating a general standard in Hall, we formulated more specific guidelines to judge admissibility of evidence of third party culpability: the rule does not require “that any evidence, however remote, must be admitted to show a third party’s possible culpability .... [E]vidence of mere motive or opportunity to commit the crime in another person, without more, will not suffice to raise a reasonable doubt about a defendant’s guilt: there must be direct or circumstantial evidence linking the third person to the actual perpetration of the crime.” (Id. at p. 833.) In the present case the record reveals that defense counsel in effect claimed the right to question only Joan concerning the alleged incident with Jay-Jay Sheffner; even if Pelletier’s testimony had been admissible, counsel abandoned any intent to call him as a witness. The most that counsel was prepared to establish was that Sheffner had a motive for being angry with the victim’s mother, and possibly with the victim. But such evidence does nothing to link Sheffner to the actual perpetration of the crime, as required by Hall, supra, 41 Cal.3d 826. We find that the court was within its discretion in concluding that the slight probative value, if any, of this evidence was substantially outweighed by the possibility of jury confusion and undue delay. The prosecution also successfully moved to exclude evidence of the “seedy” character of the neighborhood where the murder occurred, when defendant offered to raise the further possibility that the murderer was some unknown derelict. Given the above discussion, it is true a fortiori that under the Hall standard (supra, 41 Cal.3d 826) the court was not compelled to admit evidence of the neighborhood’ character, and did not abuse its discretion in excluding it. G. Discovery of Police Reports Defendant attempted to discover “police reports pertaining to child molestation killings in the Hollywood area” for the six months preceding and following the murder. The court sustained a motion to quash a subpoena duces tecum to obtain these reports. In support of the motion, the prosecutor argued that defendant was merely engaging in a “fishing expedition,” and was required to make a greater showing that the reports would be relevant. The Los Angeles City Attorney, also arguing in support of the motion, asserted that compliance with the discovery request would result in the violation of privacy rights of persons mentioned as suspects in the reports but not arrested, citing Craig v. Municipal Court (1979) 100 Cal.App.3d 69 [161 Cal.Rptr. 19]. Defendant now contends the motion to quash was incorrectly sustained. As a rule, a criminal defendant “may compel discovery by demonstrating that the requested information will facilitate the ascertainment of the facts and a fair trial.” (Pitchess v. Superior Court (1974) 11 Cal.3d 531, 536 [113 Cal.Rptr. 897, 522 P.2d 305].) But the trial court has discretion “‘to protect against the disclosure of information which might unduly hamper the prosecution or violate some other legitimate governmental interest,’ ” or when there is an “ ‘absence of a showing which specifies the material sought and furnishes a “plausible justification” for inspection [citations].”’ (Hill v. Superior Court (1974) 10 Cal.3d 812, 817 [112 Cal.Rptr. 257, 518 P.2d 1353, 95 A.L.R.3d 820].) Although policy may favor granting liberal discovery to criminal defendants, courts may nevertheless refuse to grant discovery if the burdens placed on government and on third parties substantially outweigh the demonstrated need for discovery. (See Lemelle v. Superior Court (1978) 77 Cal.App.3d 148, 165 [143 Cal.Rptr. 450]; Craig v. Municipal Court, supra, 100 Cal.App.3d 69, 77-79.) Thus in Lemelle the court concluded that the defendant’s request for 10 years’ worth of arrest reports of 2 police officers pertaining to charges of resisting arrest was overbroad, particularly in light of the fact that most of the information regarding past complaints against the officers had already been obtained through a Pitchess motion. In addition, a significant burden would have been placed on police resources by compelling them to review such a large volume of material. In the present case defendant’s request was broad and somewhat burdensome, both with regard to expenditure of police resources to review files and to the privacy interests of third parties. Moreover, he made no specific allegations that similar sexual molestation/child murders had occurred in Hollywood during the same period that might justify the imposition of such a burden. (Cf. City of Alhambra v. Superior Court (1988) 205 Cal.App.3d 1118 [252 Cal.Rptr. 789] [defendant’s discovery request granted for 12 homicide investigation reports on murders similar to the murder with which he was charged].) Because defendant failed to provide greater specificity or a greater showing of relevance in his broad discovery request, we conclude that the court did not abuse its discretion in denying it. Moreover, even if the court erred in denying the request, no prejudice resulted. There is no indication that similar murders did in fact take place in the Hollywood area during the relevant period. On the contrary, Detective Thies testified on cross-examination that no such similar murders had occurred. Defendant does not show a reasonable probability that the trial’s outcome would have been different had the discovery request been granted. Defendant also attempted to obtain the police reports after the cross-examination of Detective Thies, during which examination he admitted to having reviewed Hollywood police reports for the relevant period and found no similar crime. The request was refused, with the court relying on its ruling on the original discovery request. Defendant now contends that a separate issue was raised after Thies testified to having actually viewed the requested police reports. He claims he was entitled at that point to the police reports under the Evidence Code, which requires that “if a witness, either while testifying or prior thereto, uses a writing to refresh his memory with respect to any matter about which he testifies, such writing must be produced at the hearing at the request of an adverse party.” (Evid. Code, § 771, subd. (a).) Without deciding at present whether the police reports used by Detective Thies constitute a “writing” within the meaning of this statute, we note that the remedy for failure to produce the writing is that the testimony on which it is based “shall be stricken.” (Ibid.) There is no reasonable probability that the striking of Thies’s testimony on the lack of similar murders in the Hollywood area during the relevant period would have affected the outcome of this case, and therefore any error cannot have been prejudicial. Finally, defendant contends that denial of these police reports after Detective Thies relied on them during his testimony violated defendant’s Sixth Amendment right to confront witnesses. No objection on this ground was made below, and the issue is therefore waived on appeal. H. Erroneous Admission of Electrophoresis Evidence Without a Kelly-Frye Hearing The prosecution introduced “PGM marking” evidence, obtained by standard electrophoretic methods from dried blood, saliva, and semen stains found on the victim and on the defendant. This evidence, in combination with the ABO typing evidence, suggested that the murderer came from a group composed of 5 percent of the male population, and that defendant was a member of that group. To counter this potentially incriminating testimony, defendant called Dr. Benjamin Grunbaum, who testified to the unreliability of conventional electrophoresis testing, and to the great potential for error in the testing even when the method is theoretically capable of producing correct results. Dr. Grunbaum testified in particular to the difficulty in reading and interpreting electrophoretic test results, and to the decay of improperly stored dry samples. Defendant contends the admissibility of the electrophoretic evidence should have been subject to a Kelly-Frye hearing. (People v. Kelly (1976) 17 Cal.3d 24 [130 Cal.Rptr. 144, 549 P.2d 1240]; Frye v. United States (D.C. Cir. 1923) 293 Fed. 1013 [54 App.D.C. 46, 34 A.L.R. 145].) As set forth in People v. Kelly, supra, 17 Cal.3d at page 30, this hearing would have inquired into (1) the reliability of the method in general, (2) the use of proper scientific procedures in the particular case, and (3) whether the witness furnishing such testimony is a properly qualified expert. Defense counsel, however, failed to make a Kelly-Frye motion, or to raise any other objection to this evidence. Defendant therefore failed to preserve this issue for appeal. (Evid. Code, § 353; People v. Coleman (1988) 46 Cal.3d 749, 777 [251 Cal.Rptr. 83, 759 P.2d 1260].) Defendant also claims to discover in our previous Kelly-Frye holdings a duty by the trial court to raise Kelly-Frye objections sua sponte. We have never so held, and decline to do so now. To require the court of its own accord to raise Kelly-Frye issues, which are generally steeped in scientific and technical complexity, would burden it with a task better allocated to adversarial litigants who have strong incentives to unravel that complexity. Defendant then asks that we find defense counsel’s failure to request a Kelly-Frye hearing constituted ineffective assistance of counsel. This contention is more fully developed in defendant’s habeas corpus petition, and we accordingly address it in the following discussion of defendant’s habeas corpus claims. I. Habeas Corpus Petition 1. Failure to Retest the Dried Stains Defendant’s first petition for a writ of habeas corpus raises several claims of ineffective assistance of counsel. Most of the issues raised are similar to those presented on appeal, and do not warrant a separate discussion. But defendant does raise two substantial claims worthy of being addressed independently. Because they both concern defense counsel’s handling of the serological evidence against defendant, we have inserted a discussion of them at this point in the opinion. Defendant claims ineffective assistance of counsel when defense counsel failed to independently test the dried stains that had been subject to electrophoretic testing by police technicians. Analyses of the dried blood, semen and saliva stains were used, as explained above, to place defendant in a group of 5 percent of the male population that could have committed the crime. Although, according to one of defense counsel’s experts, Carol Rhodes, the stains could only have been retested up to ten months after they were deposited, counsel states in a declaration attached to the habeas corpus petition that he did not learn of such a time limit until one year after the murder. As explained above, ineffective assistance of counsel is found when there is (1) deficient performance by counsel as judged by prevailing professional norms and (2) a reasonable probability that, but for the deficient performance, the outcome of the trial would have been more favorable to defendant. The burden of proving ineffective assistance of counsel is with the defendant. (People v. Ledesma, supra, 43 Cal.3d 171, 216-218; People v. Pope (1979) 23 Cal.3d 412, 425 [152 Cal.Rptr. 732, 590 P.2d 859, 2 A.L.R.4th 1].) We shall assume for argument’s sake only that defendant has demonstrated deficient performance. He has not, however, demonstrated prejudice. More is required than a mere possibility that timely retesting might have yielded favorable evidence. There must be a reasonable probability that such evidence would have been produced. Defendant cannot make such a showing. He does not establish that the serological testing by the police in this case was inaccurate, or that his own tests were likely to produce a different result. Accordingly, we must conclude there was no ineffective assistance. To hold otherwise would be to establish a perverse system of incentives: defense counsel would have the choice of retesting physical evidence on some undetermined possibility that it might yield a result favorable to his client, or not retesting, with a high probability that any conviction of his client would therefore be overturned. 2. Failure to Request a Kelly-Frye Hearing Defendant also claims ineffective assistance from defense counsel’s failure to request a Kelly-Frye hearing on the admissibility of evidence obtained through electrophoresis. (See ante, pt. II.H.) In his declaration defense counsel advances the following rationale for his failure to raise a Kelly-Frye objection: (1) he believed the court would probably admit the evidence at the close of such a hearing; (2) he decided he would rather put Dr. Grunbaum on as a witness once, to gain some advantage of surprise over the prosecutor, instead of giving the prosecutor the opportunity to thoroughly examine him before he testified in front of the jury; and (3) Dr. Grunbaum appeared to be a somewhat reluctant witness, and defense counsel was uncertain that he would agree to testify twice. Whatever the ultimate wisdom of this strategic decision, it was not so unreasonable as to deprive defendant of his constitutional right to counsel. We cannot say that counsel did not rationally weigh the risks and benefits of his strategy, based on information presented to him and on his experience as an attorney, and conclude that the strategic advantage to be had by surprising the prosecutor with Dr. Grunbaum’s testimony outweighed the perceivedly slight chance of having the evidence excluded, either by the trial court or subsequently on appeal. We conclude therefore that defense counsel’s performance was not deficient. Furthermore, even if deficient performance were found, and even if it were reasonably probable that defendant would have succeeded in excluding the electrophoretic evidence, there is no reasonable probability that the outcome of the case would have been different. The evidence against defendant, though circumstantial, was very strong. First, it is undisputed that defendant was in the apartment below the victim’s on the night of the murder, and left 45 minutes to an hour before the murder took place. Although Gary Eisenhauer claimed he saw defendant walk away from the apartment building after defendant had left the party, there was considerable reason to doubt Eisenhauer’s credibility because of his association with defendant; in any event, such testimony is not inconsistent with placing defendant at the murder scene. It was also clear from the evidence that the murderer was someone, like defendant, who was well known to the victim. Monique would have had to unlock the deadbolt to permit the murderer access to her apartment, probably looking through the peephole first, a habit to which Lynn Celestin testified. There was no sign of forced entry, other than the force that occurred when Eisenhauer kicked open the door shortly after the murder. That the murderer was known to the victim is also apparent from the victim’s calling her assailant by name—a name of probably two syllables beginning with the letter “R,” according to the next-door neighbor who overheard Monique plead with the murderer. Defendant was using the alias of “Ron” at the time, and there is conflicting testimony as to whether he was sometimes called “Ronnie.” Perhaps the most damaging testimony was given by Paula Struppa, defendant’s friend during that period. Struppa testified that defendant went to the victim’s apartment the day before the murder to obtain some telephone numbers that the victim’s mother had in her possession; one of the numbers he had written down was for a “Bob.” Defendant left the apartment with several telephone numbers written on scraps of paper and supposedly never returned. Yet at the murder scene three notes in defendant’s handwriting, including a note containing the telephone number of a “Bob,” were found. Joan and Lynn Celestin testified there were no notes or scraps of paper on the floor of the apartment when they left earlier that evening. The People theorized that the notes had fallen from defendant’s pockets when he lowered his pants to compel the victim to orally copulate him. Other physical evidence also pointed to defendant. Bloodstains, some matching the victim’s blood type but not defendant’s, were found on defendant’s shirt. Struppa testified she had given that shirt to defendant the previous day and that it was not bloodstained at the time. Marks on defendant’s left hand were consistent with gouge marks that could have been made from the victim’s fingernails as she struggled to save herself from strangulation. Abrasions on defendant’s leg above and below the knee were consistent, as explained above, with the friction of defendant’s pants’ lining rubbing against his leg as he struggled to force the victim to orally copulate him. Defendant’s case, on the other hand, was extremely weak. Defense testimony on the age of the abrasions was undermined by the defense witness’s own admission that, as a dermatologist, his speculation on the cause of the injuries lay outside his field and properly belonged to the sphere of the forensic pathologist. This testimony was further discredited by the evidence of defendant’s attempt to explain a fresh leg injury to police detectives shortly after the murder. Moreover, taped excerpts of defendant’s response to police questions shortly after the murder strongly suggest that defendant fabricated an alibi, i.e., that he went to the house of Charles Smart and Paula Struppa after he left the party. Such a fabrication evinces a consciousness of guilt. The other part of defendant’s alibi, that he slept in David Pelletier’s car, was uncorroborated and, even if true, was not inconsistent with his having murdered Monique earlier that morning. Defendant also asserted, in explanation of the presence of his notes in the victim’s apartment when her body was found, that they might have come from a bowl containing slips of paper with names and telephone numbers that Joan kept on the kitchen table, and that the notes had somehow fallen to the floor. But there is no evidence that such a bowl existed in the apartment; on the contrary, Joan seems to have kept her list of important names and telephone numbers on a large file card, from which defendant copied the number of Bob and others on the day before the murder. In sum, considering the totality of the evidence, we believe there is no reasonable possibility that without the electrophoretic evidence the outcome of the trial would have been affected, and defendant has therefore failed to carry his burden to prove ineffective assistance of counsel. We accordingly reject his claims of such ineffective assistance and deny his petition for a writ of habeas corpus.