delivered the Opinion of the Court.
The People sought review of the court of appeals' judgment reversing the defendant's convictions for first degree sexual assault and second degree kidnapping. The court of appeals found that the trial court abused its discretion in admitting evidence of two prior instances of uncharged misconduct by the defendant, involving two other young women, primarily because the defendant conceded he was the person who gave the victim a ride on the day in question and because it considered the other acts insufficiently similar to the current charge. We hold that the trial court did not abuse its discretion in admitting the evidence of these other acts pursuant to CRE 404(b), and therefore we reverse the judgment of the court of appeals and remand with instructions to reinstate the defendant's convictions.
I. FACTUAL AND PROCEDURAL BACKGROUND
The charges against the defendant arose from the alleged rape of fifteen-year-old T.C. The prosecution's theory was that just before noon on October 18, 1995, while walking home from school on a rural mountain road in Jefferson County near Nederland, the vie-tim was offered a ride by the defendant, taken to a secluded dirt road, dragged down a hillside, and raped by him. The prosecution presented its case at trial largely through the testimony of the victim; relatives, police, and hospital personnel to whom she reported the assault; and coworkers of the defendant to whom he had given contradictory accounts of the incident. The prosecution also presented the testimony of four other women, each of whom was approached on a public street by the defendant, offered a ride, taken to a secluded place, and allegedly subjected to some form of attempted or completed sexual assault. Although the defendant did not testify at trial, his contention that he had merely given the victim a ride and that she was a "pathological liar," who fabricated the sexual encounter to get attention from family members, was presented through cross-examination, defense witnesses to the lack of corroborating physical evidence, and his counsel's opening and closing statements.
As the only admitted witness of the attack, the victim provided the only first-hand testimony about the details of the currently charged assault. She testified at trial that she accepted the defendant's offer of a ride to a point near her home. Upon arriving there the defendant refused to stop, saying that he needed to go to the store and would then take her back to where she wanted to go. Instead of going to a store, however, the victim testified that the defendant took her to a secluded dirt road where he stopped the vehicle and told her that he wanted to show her something in the woods. While she at first refused to get out of the truck, she eventually relented, whereupon the defendant physically dragged her down the adjacent hillside and forcefully sexually assaulted her by vaginal intercourse.
Among other details, she testified that the defendant removed all of their clothing except his shirt and commented during the assault that she had a "nice mole" on her leg. She also testified that following the assault, she accepted a ride from the defendant to a point near her destination where he apologized for his conduct, saying that next time he would not do this sort of thing, and allowed her to leave. After walking home, she vomited and immediately undressed to shower, finding a twenty dollar bill in her pant leg that she did not have before the assault. After showering, she called family members and eventually the police.
The prosecution also presented the testimony of the four women who claimed to have been picked up and taken to a secluded location during a ten-month period in 1981-82, when they were between twelve and twenty years old, by someone later identified as the defendant. Although the details of the incidents varied, each began with the offer of a ride from the defendant, which the young women accepted either voluntarily or as the result of threats, followed by a drive to a secluded location and some indication by the defendant that his intent was to have sexual relations. In two of the cases, the women were actually sexually assaulted by penetration; in a third case the woman, LL., testified that the defendant physically forced her into the back of his camper, climbed on top of her, and fondled her breasts, until her resistance and erying led the defendant to let her go to find her own way home; and in the last case, the twelve-year-old girl, to whom the defendant had given five dollars to allow herself to be photographed, fled when he crawled into his truck bed and enticingly invited her to join him to see his camera.
In three of the cases, the defendant showed the women a camera and either took photos or described his interest in taking photos of young women and either gave the young women a small amount of money as an enticement or left a small amount of money with them after the assault. In the two cases in which the defendant was able to complete the sexual penetration (one by vaginal intercourse and the other by forced fellatio), the defendant removed all of his clothing but his shirt and managed to partially or completely disrobe his victim, commenting about some physical feature that became visible-in one case a sear and the other the woman's "fuzzy," unshaved legs. After each completed assault, the defendant was conciliatory or matter-of-fact about doing this sort of thing and offered to drive the victim where she wanted to go.
The jury found the defendant guilty of both second degree kidnapping and first degree sexual assault, for which he was sentenced to concurrent terms of sixteen and eight years, respectively. On direct appeal, the court of appeals reversed, holding that although evidence of two of the prior sexual transactions involving the defendant were properly admitted, the trial court abused its discretion in admitting the other two. It held that the admission of the incidents involving the women identified as LL. and P.B., in which the encounters ended short of sexual penetration, was error because they were not related to the occurrence of sexual intercourse, which it considered the only "contested" issue at trial, and because they were not "sufficiently substantially similar [to the current charges] to be introduced under CRE 404(b) and § 16-10-301, C.R.8.1998."
II. ADMISSIBILITY OF UNCHARGED MISCONDUCT EVIDENCE
The admissibility of evidence of uncharged criminal misconduct is expressly limited by
In order to be admissible, evidence must be relevant; and unless otherwise provided by constitution, statute, or rule, all relevant evidence is admissible. CRE 402. Evidence is relevant, in the logical sense, as long as it is "evidence having any tendency to make the existence of any fact that is of consequence to the determination of the action more probable or less probable than it would be without the evidence." CRE 401; see People v. Carlson,
Evidence of other, uncharged crimes may therefore be admissible if, but only if, it is logically relevant for some reason apart from an inference that the defendant acted in conformity with a character trait, and if the probative value of the evidence for that other reason is not substantially outweighed by the other policy considerations of Rule 408. This court has previously considered the relevancy of other-crimes evidence within the scheme of the rules and has analyzed the requirements of CRE 401-404 in four parts. Spoto,
In considering the effect of CRE 404(b) on the admissibility of other-crimes evidence, we have also emphasized that "[the basic rea
We have recognized, however, that with the adoption of the rules of evidence, the analysis of the admissibility of such evidence has been significantly altered, making it admissible in some cases in which it previously might have been excluded. Garner,
Perhaps most significantly, to the extent that the law in this jurisdiction had come to exclude evidence of other crimes unless it was offered for and met the strictures of certain narrowly cireumseribed categories, see, e.g., Honey,
III. ADMISSIBILITY OF TRANSACTIONS INVOLVING LL. AND P.B.
In order to prove that the defendant in this case was guilty of kidnapping and sexual assault, the prosecution was required to show that he knowingly seized and carried the victim from one place to another without her consent and that he knowingly inflicted sexual intrusion or penetration on her by physical force or violence. The trial court heard the prosecution's pretrial motion to admit the evidence of uncharged misconduct, and in a written order granted admission of all four transactions for the purpose of showing a common plan, scheme or design, modus operandi, motive or intent, and to refute the defendant's contention that the alleged vice-tim's claim of sexual intercourse or contact was a fabrication.
(1) MATERIAL FACT
The other-crimes evidence was therefore clearly offered as relating to a number of facts that were material or of consequence to the determination of the action, as required in the first step of the Spoto
Although the trial court expressly omitted "identity" from the list of purposes for which the evidence would be admitted, it did so not from any failure to understand that the identity of the accused was necessarily a material element of the crime but rather because it considered the question of "identity" to be no longer at issue in either the charged offense or the uncharged misconduct. The defendant's theory or concession,
(2) LOGICAL RELEVANCE
Evidence of the incidents involving LL. and P.B., upon which the court of appeals reversed, was also logically relevant to prove a material fact, as required in the second step of Spoto. Those incidents were part of a pattern of behavior by the defendant demonstrating a method for committing crimes like those for which he was on trial. Even though these two incidents were terminated by action of the victims before any completed act of sexual penetration, they were evidence from which the jury could find that the defendant had a history of offering young women a ride as a ruse to isolate them and have sex with them, regardless of their consent.
Evidence indicating that the defendant had offered young women a ride in the past for the purpose of having sex had at least some tendency to make it more probable as a logical matter that he intended to have sex with the victim in the charged offense, after admittedly offering her a ride under similar
(3) INDEPENDENCE OF INFERENCE FROM BAD CHARACTER
The chain of logical inferences from the evidence of the defendant's prior conduct in step two is also independent of any inference that he must have committed a sexual assault in this case because he is a person of criminal character. The inference relied on arises not from the criminal character of the accused but from the demonstration of his pattern of using a particular technique to accomplish a particular end. The evidence tended to show that when the defendant did certain things, in a certain way, a number of times in the past, he did so with a eriminal purpose, and he took affirmative action to accomplish that purpose. The evidential hypothesis by which the commission of the guilty act could properly be inferred is included in the term mo-dus operandi, which is a traditional, if not precisely defined, expression of a legitimate way of proving the ultimate facts in a criminal case without reliance on an inference from bad character.
Although the other uncharged acts were therefore logically relevant without reliance upon the one impermissible inference, the more difficult question, as is virtually always the case, was whether the evidence of the defendant's other crimes was sufficiently probative for legitimate purposes when balanced against the danger of unfair prejudice.
(4) CRE 403
In the final step of the analysis, the trial court necessarily retains a great deal of discretion, bearing in mind that the admission of uncharged misconduct always has a substantial potential for unfair prejudice. People v. Nuanez,
The probative value or logical force of evidence of other crimes cannot be determined according to any precise formula. Depending on the purpose and theory of logical relevance advanced for its admission, the assessment of its probative value may involve a host of factors, including the distinctiveness of the other erimes and their relationship to the charged offense in terms of time and similarity. Contrary to the apparent assumption of the court of appeals, however, CRE 404(b) contains no separate requirement of similarity. See Spoto,
When evidence of other crimes is offered to show a defendant's motive for committing a charged offense or to show that other crimes were part of the preparation or plan to commit a charged offense, similarity of the crimes often has no significance whatsoever. See, eg., United States v. Brooks,
Other-crimes evidence demonstrating a common design or modus operandi has been admitted in prosecutions for sexual assault not only to prove who committed the crime but also to prove that the alleged sex act actually occurred. See, eg., People v. Luczak,
Evidence of the defendant's uncharged misconduct is clearly not admissible solely to bolster the testimony of a prosecution witness, but neither is it excluded merely because it may have that effect. See Luczak,
Although there were obvious differences in the cireumstances surrounding each transaction admitted in this prosecution, they shared a number of significant characteristics that evidenced a pattern of behavior rather than isolated prior incidents. See Garner,
In addition, however, the combination of all four incidents added substantial weight to the inference of a technique to isolate young women for the purpose of having sex. A greater number of incidents of similar behavior is important in proving that it is directed or purposive rather than coincidental. See Spoto,
While preparatory acts or even overt attempts, standing alone, may sometimes be insufficiently probative of a defendant's unfulfilled intention, in conjunction with evidence of consummated erimes resulting from similar preparations, they can form a pattern of behavior that is probative of the commission of the act. Furthermore, to the extent that, the incidents are further removed from a completed crime, they correspondingly present less of a danger of unfair prejudice. To the extent that the incidents involving L.L. and, especially, P.B were less probative of the defendant's intention to commit sexual assault, they were also less serious, heinous, or egregious, than the three sexual assaults presented to the jury and were less likely to have an inflammatory effect.
Trial courts are necessarily accorded considerable discretion in deciding questions concerning the admissibility of evidence, and an abuse of that discretion will be found only upon a showing that the ruling was manifestly arbitrary, unreasonable, or unfair. People v. Harris, No. 00SC185, slip op. at 11,
The trial court heard the motion to admit evidence of other crimes and the objections to it. It demonstrated its awareness of the applicable law controlling the admission of
IV. CONCLUSION
In finding reversible error, the court of appeals mispereeived the import of our application of the Colorado Rules of Evidence to the introduction of uncharged criminal misconduct evidence and misapplied the four-part analysis of People v. Spoto. Properly considered, the concerns of the court of appeals amount to a disagreement about the balance of probative value and prejudicial effect required by CRE 403. Accordingly, the judgment of the court of appeals is reversed and the case is remanded with directions that the judgment of conviction and sentence be affirmed.
Notes
. We granted the People's petition for certiorari on the following question:
Whether the court of appeals erred in holding, based on its application of section 16-10-301, 6 C.R.S. (1999), and CRE 404(b), that the trial court abused its discretion and committed reversible error in admitting prior act evidence relating to victims LL. and P.B.
We denied the Defendant's cross-petition for certiorari on the following two issues:
1. Whether the trial court committed reversible error when it permitted the prosecutor to introduce "similar" transaction evidence regarding J.H. and T.C. while was stale, dissimilar, irrelevant, and unduly prejudicial.
2. Whether Defendant was erroneously deprived of access to the department of social services records related to the alleged victim.
. Prior to the adoption of the rules of evidence, the Colorado General Assembly had made clear by statute that evidence of other criminal transactions would be admissible in prosecutions for sexual offenses for the same reasons it was admissible in prosecutions for other offenses. See § 16-10-301, 8A C.R.S. (Supp.1995)(substantially amended effective July 1, 1996, see ch. 280, sec. 21, 1996 Colo. Sess. Laws 1578, 1589). Whether or not the statute would have permitted other-crimes evidence in prosecutions for sexual offenses even more liberally than CRE 404(b), see Pigford v. People,
. Although the concept of materiality no longer has independent significance in the scheme of the rules, and is instead subsumed within the notion of logical relevance, see CRE 401, we have found it helpful in emphasizing the obligation of the prosecution to offer (and the court to admit) other-crimes evidence only for specific purposes, to distinguish the two concepts.
. - In its holding the court of appeals added to the first step of the Spoto analysis the requirement that the material fact for which the other-crimes evidence is offered be "contested." Slip op. at 3. Whether a material fact is contested clearly affects the need for or incremental probative value of the evidence offered to prove it, but it does not make the fact itself any less material or the evidence offered to prove it any less logically probative. The court of appeals therefore incorrectly found that the evidence failed to satisfy the first step the Spoto test.
. Because the question of whether the accused committed the criminal act contains the subques-tions of whether the act was committed by someone and whether, if so, the accused was the person who committed it, the broader question has sometimes been separated into the questions of "identity' and "commission of the actus reus." See, eg., Imwinkelried, supra, ch.4.
. At the motions hearing the parties indicated that they had a "stipulation to ID," and defense counsel made clear at both the hearing and in his opening statement at trial that the defendant was the person who picked the victim up and gave her a ride. The precise limits and legal effect of any concession by the defendant remain unclear, however, because no stipulation was ever submitted to the jury.
. See generally Imwinkelried, supra, §§ 8:07 ("[UJnder some theories of logical relevance, the uncharged act need not be similar to the charged act. Moreover, even among theories requiring similarity, the required degree of similarity varies. The modus theory of identifying the defendant as the criminal requires the highest degree of similarity while [Dean Wigmore's] doctrine of chances demands less similarity to prove the occurrence of an actus reus or guilty state of mind"), 5:08 (degree of required similarity less when proving intent through Wigmore's doctrine of chances than when proving identity through modus operandi).
