*1017 Opinion
Defendant Donald Griffin was convicted in the Superi- or Court of Fresno County (Meyers, J.) of the murder of Kelly W. (Pen. Code, § 187) and the jury found true special circumstance allegations that the murder was committed in the course of rape (Pen. Code, § 190.2, subd. (a)(17)(iii)), sodomy (Pen. Code, § 190.2, subd. (a)(17)(iv)), and a lewd act on a child (Pen. Code, § 190.2, subd. (a)(17)(v)). Defendant was also convicted of rape (Pen. Code, § 261, subds. (2) and (3)), sodomy (Pen. Code, § 286, subd. (c)), and a lewd act on a child (Pen. Code, § 288), and the jury found true an allegation that defendant had used a knife in the commission of the murder (Pen. Code, § 12022, subd. (b)). The appeal to this court is automatic.
We affirm the defendant’s convictions and the special circumstances findings. We reverse the penalty determination because of
Ramos
error
(People
v.
Ramos
(1984)
Summary of Evidence
Defendant conceded that he had killed his stepdaughter, 12-year-old Kelly W., but denied any sexual assault. The prosecution evidence was that defendant stopped by his wife’s workplace in Kerman, California, about 7 p.m. on December 13, 1979, along with Kelly. He said they were going to his parents’ house nearby, and they left. A few minutes after 10 p.m. he returned, saying that he had allowed Kelly to leave his parents’ house for home in the company of a little girl wearing horn-rimmed glasses, but that Kelly had never returned home. He made several expeditions in search of Kelly during the evening and repeated this story of her disappearance. He reported to the police that Kelly was missing, that she had left in the company of a little Mexican girl wearing glasses. He said to several witnesses that if anyone had hurt Kelly, he would kill them.
When the police received a radio report that an injured person had been found on a nearby rural road, they asked defendant to follow them to the police station. An officer coming on duty saw defendant in a cell latrine, on his tiptoes, straddling a washbasin, with his hands in front of him. The officer could not see what defendant was doing, as his back was facing the officer. When defendant turned around, he asked for paper towels, and dried his hands. The officer saw that defendant had a buck knife in a holster at his waist. Defendant went out again to search for Kelly. He returned to the police station later that night, wearing clean pants and a different jacket. An officer observed some spots of blood on his boots, and defendant said *1018 that they were oil spots and tried to wipe them off. The officer asked where defendant’s knife was, and he said he had lost it during his search for Kelly.
The victim’s body was discovered that night on the side of a rural road. The blouse and sweater were pulled up partially over her face, the back of her bra was torn, the left shoulder strap had been torn loose, and one of the cups had been cut with a knife. The left leg was bent at an awkward angle, and the underwear and pants were pulled down below the hips. The left leg of the underwear was cut through. The pants were torn and had also been cut near the zipper. There were stab wounds in the neck and abdominal incisions from the pubic bone to the breast bone, exposing the internal organs. There was a large pool of blood nearby, and a bloody partial footprint. An officer returning from the scene thought that the print matched defendant’s boots. An officer went out into the police parking lot and shone a light into the truck defendant had been driving all evening; there was blood on the floorboard on the driver’s side and another bloody footprint which looked like the one at the scene and looked like it could have been made by defendant’s boots. Later analysis of the blood in the truck showed that it was the victim’s unique blood.
After defendant’s arrest, he said, “I think I need a psychiatrist.” Then on his way from the crime lab to booking, he said to an officer, “Do you think I’ll get 10 years for this?” When an officer took defendant out of his cell after the arrest, defendant said, “Go ahead man, it’s all right, why don’t you just go ahead and kill me. It’s all right, just go ahead and kill me.” To the officer transporting him from Kerman to Fresno, defendant said, “Give me your shotgun so I can blow my head off. I’m a fool.”
Dr. Nelson performed the autopsy and testified that the cause of death was strangulation and severing of the carotid artery. The abdominal incision occurred after death. It was his opinion that there had also been a rape and an act of sodomy. The hymen was partly torn and there was a little bleeding near the tear. There was also a small bruise near the opening of the vagina and a bruise of an inch and a quarter to an inch and a half near the tear in the hymen. This testimony was impeached with prior inconsistent statements; in his autopsy report Dr. Nelson had not mentioned any bleeding near the tear in the hymen, and had described the bruise near the tear as much smaller. He explained that the shape of the bruise had become clearer after the tissue had been fixed in formaldehyde.
Dr. Nelson also testified that the anus was quite dilated, and he thought it had been stretched so far that it could not close. This testimony was impeached with his prior inconsistent statements; in his autopsy report he said the anus was somewhat “prominent.” He explained at trial that this was a *1019 nicer word than dilated. At the preliminary hearing he said that the anus was somewhat dilated. He explained that he was not very precise in his speech. The doctor also testified that he took a fluid sample from the anus which showed no sperm, but which in his opinion showed the presence of prostatic acid phosphatase.
Acid phosphatase is an enzyme which occurs in the body in both sexes, but it occurs at higher levels in the male prostate gland and is contained in seminal emissions. Dr. Nelson removed 0.1 milliliters of fluid from the anus. His technician, Ms. Gordon, diluted this with 0.2 milliliters of saline solution, and divided the sample in half. The first test on one-half of the sample showed 14.5 sigma units of acid phosphatase. The test on the other half, involving a chemical reaction with tartrate buffer, showed that of the total, 8.1 sigma units of the acid phosphatase was prostatic acid phosphatase.
The defense experts testified that in the absence of sperm or physical injury to the anus, they would not use any level of acid phosphatase to express an opinion that there had been an act of sodomy. They also disputed the accuracy and reliability of the tartrate buffer test to identify acid phosphatase as prostatic acid phosphatase; one expert went so far as to say that the tartrate buffer test was worthless and that prostatic acid phosphatase could not be distinguished from any other acid phosphatase except electrophoretically. There was also a great deal of controversy among the experts on the conversion factor between sigma units and international units, and about dilution factors. One defense expert, using his conversion factor and dilution factor, found an amount of acid phosphatase which was below the minimum amount which the scientific literature said showed the presence of prostatic acid phosphatase. However, another of the defense experts agreed with the prosecution’s dilution factors and used an even higher conversion factor, coming to a total well above the minimum which the literature said indicated the presence of prostatic acid phosphatase. He maintained, however, that high levels of the substance should not be used to support an opinion that there had been an act of sodomy in the absence of sperm or physical injury to the anus. The defense experts also testified that sperm breaks down faster than acid phosphatase, so with the levels of acid phosphatase found here, they would certainly expect to find sperm if there had been any seminal emission.
The defense pathologist, Dr. Herrmann, said that there was insufficient evidence to show either rape or sodomy, that the injuries which Dr. Nelson had described in his autopsy report were not indicative of rape, that dilation of the anus could be simply muscle relaxation after death and before rigor mortis, and that in a child of this age, he would expect much more injury if *1020 there had been a rape or act of sodomy. He thought that the injuries to the vagina could have been caused by a tampon (though the mother testified in rebuttal that the child had not started menstruating yet) or by a finger. He also thought that Dr. Nelson had erred in considering changes in tissue after fixation in formaldehyde, as the formaldehyde distorts the appearance of the tissue.
Guilt Phase Issues
1. Destruction of Evidence.
At the autopsy, the pathologist took small fluid samples from the victim’s vagina and anus. The vaginal sample was tested for sperm and prostatic acid phosphatase, and placed in a freezer. After three months, according to laboratory policy, it was removed from the freezer and placed on a shelf. By the time the defense expert examined it in June 1980, it was useless. The trial court granted defendant’s motion to suppress the results of the initial test on this sample, as the prosecution had failed to adopt rigorous measures to preserve the evidence for a reasonable period of time.
The pathologist also gave the anal sample to a medical technologist for testing. 1 The procedure she was told to employ used up the entire sample. At the hearing on the motion to suppress this evidence, she testified that she thought it had been necessary to use up the sample to perform the test, that although she supposed she could have used only part of the material and tested it at a greater dilution, she would not have confidence in the results of such a test. The defense expert testified that in his opinion it had not been necessary to use up the whole sample in order to perform the test she used reliably. The trial court refused to suppress the evidence of prostatic acid phosphatase produced by this test on the ground that it had been necessary for the People to use up the sample.
Defendant argues that the trial court committed reversible error in refusing to suppress the anal sample, relying on our decision in
People
v.
Hitch
(1974)
We recognized recently in
In re Michael L.
(1985)
Other jurisdictions have reached a similar conclusion. The Second Circuit rejected a claim that sanctions should be imposed when the government destroyed carpet scrapings and sweepings as a necessary part of a test for the presence of heroin. “[I]t was a good faith loss that came about as a necessary consequence of the method used to analyze the scrapings and sweepings which consumed the heroin in the process. [Fn. omitted.] As such it does not invoke the sanction of exclusion of the evidence particularly where, as here, the expert who performed the scientific tests is available for cross-examination. [Citations omitted.]”
(United States
v.
Beltempo
(2d Cir. 1982)
Defendant argues that there was insufficient evidence that it was necessary to use up the sample to run the test, and even questions whether this was the basis for the trial court’s ruling. From our review of the record, we think it clear that this was the basis for the trial court’s ruling. And, viewing the evidence in the light most favorable to the trial court’s finding, there was substantial evidence to support the finding, and it must be upheld on appeal. (See
People
v.
Ratliff
(1986)
Defendant also argues that as to the vaginal sample which the trial court excluded, the trial court committed reversible error in failing to instruct the jury sua sponte that they could infer from the state’s failure to preserve the vaginal fluid sample that the evidence would have favored the defendant. He relies on our decision in
People
v.
Zamora
(1980)
In
Zamora, supra,
Again, it is a matter of trial court discretion to determine what sanction is appropriate when the prosecution destroys evidence. We see no abuse of discretion here.
2. Search of Truck.
Defendant moved to suppress evidence of stains of the victim’s blood found in his truck. He contends the warrantless search of his truck violated the Fourth Amendment and requires reversal of his convictions. We disagree. 3
The facts leading up to the search showed that defendant had changed his clothes between his first and second visits to the Kerman police station. Officer Singh saw what appeared to be blood on defendant’s shoe. Defendant denied it was blood and attempted to wipe it off. Officers Lopez and Singh noticed defendant no longer had his knife, but when they looked where defendant said he had lost it, they could not find it. Sergeant McKinney at the crime scene found a bloody shoe print which matched defendant’s shoe print. Sergeant McKinney told Fresno County Detective Williams about the shoe print and told Williams that defendant’s truck was parked at the Kerman police station. Williams went to the Kerman police station and shone his flashlight into the interior of defendant’s truck, which was parked in the parking lot. Williams observed a bloody shoe print on the floorboard which appeared to be similar to the bloody shoe print at the crime scene. The blood appeared to be fresh.
*1024 Defendant was placed under arrest and Williams called the criminalist from the crime scene to determine if the blood in the truck was human blood. The criminalist entered the truck and examined the blood stains. The truck was impounded and taken to the Fresno County garage, where the criminalist took blood samples from the truck and the floor mat. The blood matched the victim’s unique blood type.
At the motion to suppress, the People sought to justify the search solely on the ground of the “instrumentality” exception to the warrant requirement, i.e., that the vehicle itself is an instrumentality of the crime or is itself evidence. Defendant here argues that there is no instrumentality exception to the warrant requirement, 4 and alternatively, that the exception does not apply.
Defendant’s contention is without merit. We have recognized and applied the instrumentality exception in several cases.
In People
v.
Teale
(1969)
In
North
v.
Superior Court
(1972)
In
People
v.
Rogers
(1978)
The propriety of a warrantless seizure and search where the vehicle is itself evidence or the instrumentality of a crime is implicit in a number of United States Supreme Court decisions as well. (See
Cardwell
v.
Lewis
(1974)
Defendant suggests that we repudiated the
Teale
line of cases in
People
v.
Minjares
(1979)
*1026 3. Instructional Error.
Defendant argues it was error for the court to fail to instruct the jury sua sponte pursuant to CALJIC No. 2.13 5 that prior inconsistent statements are admissible not only for impeachment but as evidence of the truth of the facts stated on the prior occasion. He claims that the instruction was necessary because a crucial prosecution witness, Dr. Nelson, who had performed the autopsy, was impeached with serious inconsistencies.
Defendant has cited no authority establishing that the court has a sua sponte duty to instruct the jury pursuant to CALJIC No. 2.13, nor have we found any. Indeed, with respect to Dr. Nelson’s testimony, the jury was never instructed that its use was to be restricted or limited in any way (aside from answers to which defense objections were sustained and the matters ordered stricken). So far as the jury was concerned, the testimony was admitted for all purposes and there is no reason to suppose it believed otherwise. Even if it could be concluded there was error, however, it is inconceivable that a result more favorable to defendant would have been reached had the instruction been given.
Defendant also argues that the trial court erred in instructing the jury pursuant to CALJIC No. 2.03. 6 This instruction tells the jury that it may infer consciousness of guilt from defendant’s false or misleading statements before trial. Defendant made several statements which the jury could have determined were false or misleading, in that he fabricated a story that Kelly had left his parents’ house in the company of a little girl, and he made a charade of looking for Kelly and this little girl for several hours after the offense. He also several times said he would kill anyone who had harmed Kelly; reported that he had lost his buck knife during the search for Kelly; explained that he had changed his clothes during the evening because they were too tight; and had explained that something that was probably a bloodstain on his shoe was an oil mark.
Defendant argues that after his concession that he had killed Kelly, the only issue remaining was whether he had committed the sex crimes. He
*1027
maintains that the false and misleading statements he made did not support any inference of consciousness of guilt as to the sex crimes, so that the instruction should not have been given. We disagree. First of all, his concession was not tantamount to a guilty plea, as we explain below, and the jury still had to determine whether or not he had committed a murder, and of what degree any murder was. Furthermore, defendant has provided no authority, nor have we found any, to support the proposition that a statement only supports an inference of consciousness of guilt if it mentions the particular offense, committed during a single transaction, about which the declarant feels guilty. Of course, the jury must not be instructed that it may draw a particular inference unless there is evidence in the record, which, if believed, will support the suggested inference.
(People
v.
Hannon
(1977)
Defendant also attacks the giving of CALJIC No. 2.03 on the basis of
Ulster County Court
v.
Allen
(1979)
4. Gruesome Photograph.
Defendant argues that the trial court erred in failing to weigh the probative value against the prejudicial effect of a photograph showing the crime scene and the victim’s body.
*1028 Evidence Code section 352 provides: “The court in its discretion may exclude evidence if its probative value is substantially outweighed by the probability that its admission will . . . create substantial danger of undue prejudice, of confusing the issues, or of misleading the jury.”
When the defendant seeks to exclude evidence under the authority of this section, “the record must affirmatively show that the trial judge did in fact weigh prejudice against probative value. . . . [T]he reason for the rule is to furnish the appellate courts with the record necessary for meaningful review of any ensuing claim of abuse of discretion; an additional reason is to ensure that the ruling on the motion ‘be the product of a mature and careful reflection on the part of the judge’. . . .”
(People
v.
Green
(1980)
While the court in this case did not explicitly say that it found the probative value of the evidence outweighed its prejudicial effect, we think it is clear from the record that the court understood the weighing function prescribed by Evidence Code section 352. At first, on the basis of defense counsel’s argument that the two photographs were too prejudicial, the court sustained the objection. When the district attorney came forward with more arguments that the evidence was probative, including the argument that they were relevant to show the commission of a lewd act on a child because they showed the disarray of the clothing, the court changed its mind as to one photograph, but still excluded the closeup, which was obviously more graphic and shocking. The court explicitly stated the grounds upon which it determined that the evidence was probative, though the court did not explicitly state that it was more probative than prejudicial. Nonetheless, we think that the record adequately shows that the judge properly exercised his discretion.
Even if we found the record inadequate to review the court’s exercise of discretion, defendant has still not shown that any error was prejudicial. “Our past cases make clear that a trial court’s refusal to exclude otherwise admissible photographs under section 352 will not be disturbed on appeal unless the prejudicial effect clearly outweighs the photos’ probative value.” [Citation.]
(People
v.
Ramos
(1982)
5. Partial Concession of Guilt.
Defendant contends that the murder conviction must be reversed because the court permitted counsel to enter what was tantamount to a guilty plea without obtaining defendant’s waiver of the constitutional rights he was giving up. Defendant contends that when defense counsel in opening statement conceded defendant’s responsibility for the killing, the trial court should have intervened to advise defendant of his constitutional rights and obtain a personal waiver of those rights under
Boykin
v.
Alabama
(1969)
Counsel’s decision not to contest guilt on one or more charges at the guilt phase of a capital trial is not tantamount to a guilty plea.
(People
v.
Hendricks
(1987)
6. Lesser Included Offense.
Defendant contends that as commission of a lewd act on a child in violation of Penal Code section 288 is a lesser included offense of both rape and sodomy, the lewd act conviction and special circumstance finding based on that conviction must be reversed. He also maintains that since the jury erroneously considered the lewd-act special circumstance in determining *1030 the penalty to be imposed, that the death penalty must be reversed. The first contention must fail, and the second one need not be reached.
We recently rejected the contention that a lewd act on a child in violation of Penal Code section 288 is a lesser included offense of sodomy, in
People
v.
Pearson
(1986)
7. Instruction on Note Taking.
Defendant argues, relying on our decision in
People
v.
Whitt
(1984)
8. Intent to Kill.
The jury was not instructed that the three felony-murder special circumstances required proof of intent to kill. Defendant maintains that this
*1031
was error under
Carlos
v.
Superior Court
(1983)
9. Premeditation and the Felony-murder Special Circumstance.
Defendant maintains that as a matter of statutory construction, the felony-murder special circumstance requires proof that the killing was wilful, deliberate, and premeditated. He relies on a single element of our statutory construction in
Carlos
v.
Superior Court, supra,
Defendant has pointed to no evidence that the voters who enacted the 1978 death penalty law intended to retain the requirement of the 1977 death penalty law that a felony murder be premeditated in order to qualify as a special circumstance. In the absence of such evidence, the fact that the 1978 initiative deleted the premeditation requirement of the 1977 death penalty law provides an overwhelming inference that the voters intended to eliminate the premeditation requirement. (Cf.
People
v.
Weidert
(1985)
Penalty Phase
Defendant was 30 years old at the time of the offense and had no prior convictions. There was no evidence of any prior misconduct; in fact, the prosecution presented no evidence at the penalty phase of trial.
In mitigation, the defendant called his parents and other family members who described defendant’s family background. Defendant had little schooling and had been placed in classes for slow learners. He left school at age 15 or 16 and started working as a laborer and security guard. He was considered cooperative and hardworking. Defendant was a loving stepfather to the victim for seven years. However, at the time of the offense defendant’s relationship with his wife had seriously deteriorated, in part due to financial difficulties. Defendant had been laid off a day or two before the offense.
The evidence presented at the penalty phase of trial showed that there was no indication of any violence in defendant’s nature, and no sign before *1032 the offense of the coming explosion. His friends and family were shocked, believing him incapable of such an act. There was also testimony that after the offense, defendant was extremely remorseful, asking that his own life be taken.
Commutation Instruction.
At the conclusion of the penalty phase, over defense counsel’s objection, the court gave the so-called Briggs Instruction on the Governor’s power to commute a sentence of life without possibility of parole: “You are instructed that under the state Constitution, a governor is empowered to grant a reprieve, pardon or commutation after sentence following conviction of a crime. Under this power a governor may in the future commute or modify a sentence of life imprisonment without possibility of parole to a lesser sentence that would include the possibility of parole.” (Former CALJIC No. 8.84.2 (4th ed. 1979).) 7 Since the court had overruled his objection, defense counsel tried to soften the impact of the instruction in argument by telling the jury that the Governor may also commute a death sentence, and by urging them not to let the instruction influence their penalty determination. The prosecutor was not permitted to rely on the Briggs Instruction in his argument to the jury.
In
People
v.
Ramos, supra,
Respondent asks us to overrule
Ramos
II, proposing virtually the same arguments we considered and rejected in that case. We decline the invitation. (See, accord,
People
v.
Bunyard
(1988)
Respondent argues next that
Ramos
error should be judged by the
Watson
harmless error standard
(People
v.
Watson
(1956)
When the court has given the Briggs Instruction without an instruction to disregard the possibility of commutation or pardon in determining penalty, we have consistently reversed on the theory that the instruction is necessarily prejudicial.
(Ramos
I,
supra,
The People also argue that defense counsel’s argument to the jury cured any error by telling the jury that a death sentence may be commuted and by urging them not to consider commutation. We reject this contention, as we have before. (See
People
v.
Myers, supra,
The judgment is affirmed as to guilt and the special circumstance findings are upheld. The judgment is reversed as to penalty.
*1034 Lucas, Kaufman, C. J., Mosk, J., Panelli, J., Arguelles, J., Eagleson, J., and J., concurred.
Notes
The technician testified that she had performed the tests on the vaginal and anal samples on December 13, 1979. This must be a mistake, as the autopsy was not performed until December 14, 1979.
The court, faced with unnecessarily duplicative color, chromotography, ultraviolet and microcrystalline tests for the presence of heroin which destroyed the sample, affirmed an order suppressing the evidence. In addition, it set out guidelines for future cases in which prosecution tests would consume or destroy evidence. These guidelines advise courts to determine whether in drug analysis cases, prosecution experts could preserve test results on lab slides or by photograph, whether they could preserve samples used in the ultraviolet tests, and whether they could conduct a quantitative analysis. Finally, in those cases where the amount of material available for testing is small, or when the state’s duty to preserve evidence would otherwise be enhanced, it may be incumbent on the state to contact the defendant to determine whether he wishes his expert to be present during the tests.
*1022 The trial court in this case wisely urged the prosecution to consider giving notice to the defense and allowing defense experts to be present when tests will make use of the evidence. This is the better practice, but it has not been established as a constitutional requirement.
The search of the truck unquestionably would have been constitutionally valid under present United States Supreme Court decisions, notably
Colorado
v.
Bertine
(1987)
Defendant contends also that we may not consider whether the automobile exception to the warrant requirement would justify the search, because the People apparently abandoned that theory in the trial court. We need not specifically address his assertion, however, because we find that the search was proper under the instrumentality exception.
CALJIC No. 2.13 states: “Evidence that on some former occasion, a witness made a statement or statements that were inconsistent [or consistent] with his testimony in this trial, may be considered by you not only for the purpose of testing the credibility of the witness, but also as evidence of the truth of the facts as stated by the witness on such former occasion. [11] [If you disbelieve a witness’ testimony that he no longer remembers a certain event, such testimony is inconsistent with a prior statement or statements by him describing that event.]” (CALJIC No. 2.13 (1979 rev.).)
The court read CALJIC No. 2.03 as follows: “If you find that before this trial the defendant made false or deliberately misleading statements concerning the charge upon which he is now being tried, you may consider such statements as a circumstance tending to prove a consciousness of guilt but it is not sufficient of itself to prove guilt. The weight to be given to such a circumstance and its significance, if any, are matters for your determination.”
The Attorney General’s argument that the instruction was modified is wrong. The instruction given was exactly the same as the instruction we disapproved in
Ramos, supra,
This is not a case in which the trial court instructed the jury not to consider the possibility of commutation or pardon in determining the penalty. The majority of the court hold that we must presume that the jury followed such an ameliorative instruction, and so disregarded the Briggs Instruction in determining penalty.
(People
v.
Hamilton
(1988)
