State v. Richins , 2021 UT 50 ( 2021 )


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    2021 UT 50
    IN THE
    SUPREME COURT OF THE STATE OF UTAH
    STATE OF UTAH,
    Respondent,
    v.
    RONALD JAY RICHINS,
    Petitioner.
    No. 20200228
    Heard April 14, 2021
    Filed August 19, 2021
    On Certiorari to the Utah Court of Appeals
    Third District, Salt Lake
    The Honorable Katie Bernards-Goodman
    No. 171403503
    Attorneys:
    Sean D. Reyes, Att’y Gen., Nathan H. Jack, Asst. Solic. Gen.,
    Thaddeus May, Salt Lake City, for respondent
    Sarah J. Carlquist, Salt Lake City, for petitioner
    JUSTICE PEARCE authored the opinion of the Court in which
    CHIEF JUSTICE DURRANT, ASSOCIATE CHIEF JUSTICE LEE,
    JUSTICE HIMONAS, and JUSTICE PETERSEN joined.
    JUSTICE PEARCE, opinion of the Court:
    INTRODUCTION
    ¶1 A teenager being driven to school reported seeing Ronald Jay
    Richins standing in his yard and moving his hands in front of his
    pants in a way that suggested he was masturbating. The State
    charged Richins with lewdness.
    ¶2 The State sought to introduce evidence of four prior
    occasions when Richins had been accused of exposing and/or
    stimulating himself in public. Over Richins’s objection, the district
    court admitted the evidence. The district court reasoned that the
    doctrine of chances permitted the State to introduce evidence of
    Richins’s prior acts to establish the unlikelihood that his teenaged
    STATE v. RICHINS
    Opinion of the Court
    neighbor was mistaken about what she had seen. The jury convicted
    Richins.
    ¶3 Richins sought review in the court of appeals. That court
    affirmed Richins’s conviction but expressed concerns about the way
    this court has articulated and applied the doctrine of chances. We
    agree with a majority of the court of appeals that the doctrine of
    chances presents a set of challenges for the courts tasked with
    applying it. This causes us to conclude that if the doctrine of chances
    is to remain part of our jurisprudence, it needs to be more carefully
    explained and more precisely employed. But we disagree with the
    court of appeals that the doctrine was correctly applied to admit the
    evidence in this case. We reverse the court of appeals, vacate
    Richins’s conviction, and remand for a new trial.
    BACKGROUND
    ¶4 Richins’s next-door-neighbor (Neighbor) was driving her
    fifteen-year-old daughter (Daughter) to school. Daughter saw
    Richins standing in his yard. When a detective interviewed Richins
    three months later, he said that he was out for a smoke. Neighbor
    and Daughter told the detective a different story.1
    ¶5 Daughter said she saw Richins with “his hands down near
    his genital area.” She “could tell that there was flesh there . . . and he
    was obviously holding something.” She said she saw a “back and
    forward motion” and “[i]t kind of looked like he might have been
    masturbating.”
    ¶6 But Daughter also said that she “didn’t exactly see what
    [Richins] had in his hands.” She conceded that “it’s possible that I
    saw his hands in his pocket.” Daughter also said she wasn’t one
    hundred percent sure what Richins was doing.
    ¶7 As they drove past, Daughter had told Neighbor not to look
    at Richins. Neighbor looked. Neighbor said that Richins “appeared
    to be standing with his hands just kind of clasped down in front of
    him.” There was nothing else Neighbor could observe from her
    vantage point. She acknowledged that Richins “may have just had
    his hands clasped in front of him. That’s all I saw.”
    _____________________________________________________________
    1Each of the facts we include in the background section came into
    evidence through the testimony of one or more of Neighbor,
    Daughter, and the detective who investigated this case.
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    ¶8 Daughter may have had reasons to perceive that Richins was
    engaged in something untoward. Daughter thought Richins was
    “creepy” and said that he made her feel “uncomfortable.” Neighbor
    also told police that Richins was a “creepy guy.” Neighbor, who
    knew that Richins was a registered sex offender, had told Daughter
    to “watch out” for Richins. Neighbor told Daughter “not to go near
    [Richins] or his house because all our neighbors warned us about
    him.” Neighbor had given Daughter a “parental warning” consisting
    of: “Don’t go into his yard. Don’t talk to him. Just stay away from”
    Richins.
    ¶9 When a detective spoke with Richins about Daughter’s
    report, the detective told Richins that two people were “certain” he
    had exposed himself. Richins maintained his innocence.
    ¶10 The State charged Richins with lewdness by a sex offender.
    Before trial, Richins’s counsel sought to have the State disclose any
    evidence it would seek to admit under rule 404(b) of the Utah Rules
    of Evidence.2 The State responded that it intended to introduce four
    separate incidents where Richins had exposed himself to women or
    was alleged to have done so (the other-acts evidence).
    ¶11 In the first incident, a woman noticed Richins looking at
    her as she entered a shopping center. When she exited, she saw that
    _____________________________________________________________
    2  Utah Rule of Evidence 404(b) prohibits the use of crimes,
    wrongs, or other acts as character evidence. Character evidence is
    evidence of a person’s good or bad character—whether or not they
    are a “generally good-hearted person with positive qualities.” State
    v. Gallegos, 
    2020 UT App 162
    , ¶ 36, 
    479 P.3d 631
    . Character evidence
    also includes evidence of “specific traits or propensities [a] person
    might have, some of which might be negative even if the person
    could be considered generally a good person.” 
    Id.
     Utah Rule of
    Evidence 404(b)(1) provides, “Evidence of a crime, wrong, or other
    act is not admissible to prove a person’s character in order to show
    that on a particular occasion the person acted in conformity with the
    character.” Utah Rule of Evidence 404(b)(2) provides that this
    “evidence may be admissible for another purpose, such as proving
    motive, opportunity, intent, preparation, plan, knowledge, identity,
    absence of mistake, or lack of accident.” “This list is not exhaustive,
    however, and evidence demonstrating other purposes is not
    precluded so long as the evidence is offered for a legitimate purpose
    other than to show the defendant’s propensity to commit the crime
    charged.” State v. Allen, 
    2005 UT 11
    , ¶ 17, 
    108 P.3d 730
    .
    3
    STATE v. RICHINS
    Opinion of the Court
    Richins had moved his car near hers. As she returned to her car, she
    saw Richins’s discernibly turgid member. She also saw that he was
    masturbating. Richins denied the allegations but was cited for
    lewdness. The ultimate resolution of the case is unclear from the
    record.
    ¶12 In the second incident, two women in a park reported
    seeing Richins expose his penis, make eye contact, and begin to
    masturbate. Richins admitted to masturbating in front of the women
    and was arrested. The final resolution of the case is unclear from the
    record.
    ¶13 In the third incident, Richins was seen masturbating while
    driving next to a bus of junior high school girls. Richins mouthed “I
    love you” to some of them. Richins pled guilty to two counts of
    lewdness.
    ¶14 In the fourth incident, a woman waiting at a bus stop saw
    Richins pull down his pants, expose his penis, and begin to touch
    himself. A jury convicted Richins of lewdness.
    ¶15 The State argued that the other-acts evidence was
    admissible for two different reasons. The State argued it could be
    admitted to rebut the assertion that Daughter was “mistaken in what
    she witnessed.” The State also argued the evidence should be
    admitted under the doctrine of chances.3
    ¶16 Richins countered that no proper noncharacter purpose
    justified the admission of the other-acts evidence. Richins contended
    that telling the jury about the four occasions on which he had been
    accused of public indecency would invite the jury to indulge the
    “improper inference” that evidence rule 404(b) prohibits. That is,
    that the evidence would suggest to the jury that he had been
    pleasuring himself when Neighbor and Daughter drove by because
    he is the type of guy who pleasures himself publicly.
    ¶17 Richins also argued that the State had not identified a
    proper noncharacter purpose for the admission of the evidence.
    Richins emphasized that he had not raised a defense of mistake,
    accident, lack of opportunity, or incorrect identification. Therefore,
    _____________________________________________________________
    3  The doctrine of chances is “a theory of logical relevance that
    ‘rests on the objective improbability of the same rare misfortune
    befalling one individual over and over.’” State v. Verde, 
    2012 UT 60
    ,
    ¶ 47, 
    296 P.3d 673
    , abrogated on other grounds by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    .
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    Richins continued, it would be inappropriate to allow the State to
    introduce the evidence to rebut defenses he had no intention of
    raising.
    ¶18 Richins further contended that the evidence should not be
    admitted under the doctrine of chances. As Richins highlighted, the
    doctrine of chances sets forth “four foundational requirements” that
    must be satisfied before prior-acts evidence can be admitted. See
    State v. Lopez, 
    2018 UT 5
    , ¶ 54, 
    417 P.3d 116
    . These factors, taken from
    State v. Verde, 
    2012 UT 60
    , ¶ 47, 
    296 P.3d 673
    , abrogated on other
    grounds by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    , are:
    “materiality, similarity, independence, and frequency.” 
    Id.
     Richins
    argued that the other-acts evidence was neither material, similar, nor
    frequent enough to be admitted under the doctrine.
    ¶19 Richins argued that the “offered evidence is not material
    because it does not address a defense raised by the Defendant.”
    Richins claimed that there was “no contested issue of identity or
    opportunity, nor is there a contested claim of mistake or accident.”
    Richins maintained that “the State is incorrect in asserting that a
    defense claim that the accuser is mistaken” qualifies as an exception
    to the rule against character evidence from evidence rule 404(b)
    because “404(b) refers to a claim of mistake or accident by the
    defendant; not by a witness or accuser.”
    ¶20 Richins further argued “there are material and contextual
    differences between the various incidents sufficient that they fail to
    clear the bar for similarity” and frequency. Richins pointed to the
    factual dissimilarities between the charged conduct and his other
    acts. And he focused his argument on the time that had passed since
    the other acts had occurred. He contended that the other acts had
    taken place between three and a half and nine years before.
    According to Richins, the gap in time meant that the acts had not
    occurred with sufficient frequency to have doctrine-of-chances
    significance.
    ¶21 The district court rejected all of Richins’s arguments and
    found the other-acts evidence admissible under rule 404(b). The
    district court concluded that the evidence was admissible for three
    different non-character purposes: absence of mistake, rebuttal of a
    claim of fabrication, and the doctrine of chances.
    ¶22   The court briefly addressed each of the Verde factors:
    The court finds that the proposed 404(b) evidence is
    material inasmuch as it address[es] issues that are
    clearly in dispute, namely what [Daughter] saw.
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    STATE v. RICHINS
    Opinion of the Court
    Secondly the court finds that the incidents are similar,
    inasmuch as they all involve the exact same conduct,
    that of the defendant exposing himself to women in
    public. Third the court notes all of the prior incidents
    involve[] women who have no[] connection to one
    another. Finally the court find[s] that the State has met
    the frequency requirement, inasmuch as four
    allegations in seven years is clearly more accusations
    that a “typical” person would endure.
    ¶23 Richins also argued that, even if the proffered other-acts
    evidence was admissible under rule 404(b), it ought to be excluded
    under rule 403.4 By Richins’s account, the “jury’s duty in this case is
    simply to determine whether Mr. Richins is guilty beyond a
    reasonable doubt of the charge of lewdness in this case only.”
    Richins therefore posited that the “jury should not make such a
    determination by means of considering both proven and
    unsubstantiated allegations that were made at least three and nine
    years prior to the one at issue in this case.”
    ¶24 The district court concluded that rule 403 did not bar the
    admission of the other-acts evidence. The court found that the
    “proposed evidence is clearly prejudicial but it would not result in
    ‘unfair prejudice’ that substantially outweighs its probative value.
    The court finds that because all of the prior victims are discussing
    lewdness allegation[s] and not a more serious sexual offense the
    prejudicial effect of the evidence will be muted.”
    ¶25 In the ruling’s wake, Richins’s trial counsel and the State
    stipulated how the prior incidents would be presented to the jury.
    The stipulation read, “On four separate occasions from 2007 to 2013
    four different women indicated that Mr. Richins exposed his penis to
    them and touched his penis in their presence. None of these women
    knew Mr. Richins, or each other, or welcomed his conduct. Two of
    these incidents resulted in convictions.”
    ¶26 Armed with a ruling allowing him to introduce Richins’s
    checkered history, the prosecutor began his opening statement: “I
    want to talk a little bit about coincidences. This case has some
    _____________________________________________________________
    4Rule 403 states that a “court may exclude relevant evidence if its
    probative value is substantially outweighed by a danger of one or
    more of the following: unfair prejudice, confusing the issues,
    misleading the jury, undue delay, wasting time, or needlessly
    presenting cumulative evidence.” UTAH R. EVID. 403.
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    interesting coincidences.” The prosecutor noted that he shared the
    same last name as the alleged victim in the case, even though they
    weren’t related. He then noted that the alleged incident happened on
    his birthday. “What do those two facts mean?” he asked,
    rhetorically. “I would submit that it means nothing. Absolutely
    nothing. Those are just coincidences. Random facts. Random
    occurrences. They’re not data from which you could learn anything.”
    ¶27 “But,” he continued, “you’ll be hearing about some data in
    this trial, some probabilities and some things like that, that actually
    will be firm and strong and sound enough that you can make
    conclusions based on that data.”
    ¶28 The prosecutor described what Daughter would say she
    saw Richins do. The prosecutor then told the jury:
    I want to talk a little bit more about coincidences and
    conclusions. That is not the only evidence you’ll
    receive in this case. You will hear that from the years of
    2007 to 2013, you’ll be instructed that four separate
    women on four separate occasions saw the defendant,
    Ronald Richins, expose himself in a public place. None
    of these women knew one another. None of these
    women knew Mr. Richins.
    He began to say, “This evidence is powerful because it goes far
    beyond . . . .” before being interrupted by an objection. After the
    objection, he concluded, “Because of this evidence,” apparently
    referring to the other-acts evidence, “and the evidence of [Daughter],
    we’ll be asking you to return a guilty verdict.”
    ¶29 The prosecutor returned to coincidences in his closing
    argument. He recapped the testimony that Daughter had given and
    then said:
    You’ve heard from four separate women that have
    described essentially the same conduct about Mr.
    Richins. They said they saw his penis, and they saw his
    hand touching his penis. They saw a very similar thing
    to what [Daughter] described.
    So ask yourselves, what are the odds that [Daughter’s]
    description is accurate? It’s not mistaken. It’s not the
    result of some fantasy or oppressed thought. That is
    why that evidence is so important.
    He said, “So how is it when you apply that to these four separate
    allegations, right, and then [Daughter’s] description of the exact
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    STATE v. RICHINS
    Opinion of the Court
    same conduct essentially, what are the odds of such a misfortune
    befalling Mr. Richins on five separate occasions?” He continued:
    [B]ased on the evidence presented by [Daughter] and
    [Neighbor], and based on the stipulation of fact for
    which you can consider specifically, is [Daughter]
    mistaken? Is she fabricating this claim? And you can
    consider the notion that what is the objective
    improbability of somebody having this bad of luck. It’s
    no coincidence . . . it is a clear, clear, clear conclusion.
    ¶30   The district court instructed the jury:
    You have heard evidence that four women have made
    similar allegations to those presented in this trial
    against Ronald Richins before the act(s) charged in this
    case. You may consider this evidence, if at all, for the
    following limited purposes:
    1) to rebut a claim that a witness was mistaken
    in what she saw on the date in question;
    2) to rebut the idea that a witness’s testimony
    was the result of fabrication.
    The evidence was not admitted to prove a character
    trait of the defendant or to show that he acted in a
    manner consistent with such a trait. Keep in mind that
    the defendant is on trial for the crime charged in this
    case, for that crime only. You may not convict a person
    simply because you believe he may have committed
    some other acts at another time.
    ¶31 The jury deliberated. At some point during the
    deliberations, one of the jurors sent the court a note asking: “If the
    jury can’t agree on guilty or not guilty, what do we do?”
    Deliberations continued. The jury convicted Richins of lewdness by a
    sex offender. Richins appealed.
    ¶32 The court of appeals affirmed. See State v. Richins, 
    2020 UT App 27
    , ¶ 33, 
    460 P.3d 593
    . On the rule 404(b) issue, Richins argued
    that the district court erred when it admitted the other-acts evidence
    to rebut a claim of fabrication. Richins asserted that he never claimed
    that Daughter “fabricated or intentionally lied about the claim she
    raised against him.” Id. ¶ 21. He argued in his briefing that “trial
    counsel’s primary strategy was to show that Daughter herself had
    doubts about what she may have seen—a strategy different from
    asserting Daughter had fabricated anything.”
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    ¶33 The court of appeals noted that Richins had argued to the
    jury that Victim was “biased” or “prejudiced” or “preconditioned”
    to think he committed the offense. Richins, 
    2020 UT App 27
    , ¶ 14.
    The court of appeals held that “[w]hether [Daughter] intentionally
    lied about seeing Richins expose himself or whether she
    subconsciously jumped to the conclusion that he exposed himself
    does not change Richins’s basic assertion that he was falsely accused.”
    Id. ¶ 21. And, therefore, “the district court did not err in permitting
    the State to offer evidence of Richins’s prior acts of exposing himself
    to other women to rebut Richins’s defense that [Daughter] falsely
    accused him of exposing himself to her.” Id. ¶ 22.
    ¶34 Richins also argued that the district court misapplied the
    doctrine of chances. Id. ¶ 23. He claimed that the district court had
    erred when it concluded that the State had established that the other
    acts evidence had satisfied three of the doctrine of chance’s
    foundational requirements: materiality, similarity, and frequency. Id.
    The court of appeals rejected that argument and held that the district
    court had correctly concluded that the doctrine’s foundational
    requirements had been satisfied. Id. ¶ 28.
    ¶35 Richins last argued that the district court erred in not
    excluding the other-acts evidence under rule 403. Id. ¶ 29. The court
    of appeals affirmed the district court’s rule 403 determination.
    Although the court of appeals noted that “a more thorough
    consideration of rule 403 [by the district court] would have aided our
    review on appeal,” the court agreed with “the district court’s
    ultimate determination that the potential for prejudice or confusion
    from admitting the evidence of Richins’s other lewd behavior did
    not substantially outweigh the probative value of that evidence.” Id.
    ¶ 31.
    ¶36 Two judges on the panel included a footnote in the opinion
    setting forth their concerns about the way we have described and
    applied the doctrine of chances. See id. ¶ 20 n.2; see also id. ¶ 34
    (Orme, J., concurring with exception to footnote 2). Those judges
    opined that they “question[ed] the wisdom of applying the doctrine
    of chances to rebut charges of fabrication or mistake on the part of an
    accusatory witness.” Id. ¶ 20 n.2.
    ¶37 Richins petitioned for certiorari review. We granted
    certiorari on two questions:
    1. Whether the Court of Appeals erred in concluding
    that evidence of other acts was admitted for a
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    STATE v. RICHINS
    Opinion of the Court
    permissible noncharacter purpose under the doctrine
    of chances.
    2. Whether the Court of Appeals erred in affirming the
    district court’s conclusion that the probative value of
    evidence of other acts was not substantially
    outweighed by any unfair prejudice.
    ¶38 Richins has not asked us to overturn Verde nor to abandon
    the doctrine of chances altogether, so we do not consider doing
    either in this opinion. Instead, Richins argues that the court of
    appeals erred in its analysis of the materiality and frequency prongs
    of the doctrine of chances. And he argues that the court of appeals
    erred because the prejudice flowing from the other-acts evidence the
    district court admitted substantially outweighed its probative value.
    For these reasons, he asks us to reverse the court of appeals and
    grant him a new trial.
    STANDARD OF REVIEW
    ¶39 “On certiorari, we review the decision of the court of
    appeals for correctness, giving no deference to its conclusions of
    law.” State v. Sanchez, 
    2018 UT 31
    , ¶ 10, 
    422 P.3d 866
     (citation
    omitted). “[T]he correctness of the court of appeals’ decision turns, in
    part, on whether it accurately reviewed the [district] court’s decision
    under the appropriate standard of review.” State v. Lowther, 
    2017 UT 34
    , ¶ 17, 
    398 P.3d 1032
     (second alteration in original) (citation
    omitted). “The appropriate standard of review for a district court’s
    decision to admit or exclude evidence is ‘abuse of discretion.’ A
    district court abuses its discretion when it admits or excludes
    ‘evidence under the wrong legal standard.’” 
    Id.
     (citations omitted).
    ANALYSIS
    I. THE COURT OF APPEALS ERRED IN ITS
    APPLICATION OF RULE 404(b)
    ¶40 Richins argues that the court of appeals erred when it
    upheld the district court’s decision to admit the other-acts evidence
    under Utah Rule of Evidence 404(b). Richins first argues that the
    court of appeals and district court improperly concluded that
    rebutting a claim of fabrication constitutes a proper noncharacter
    purpose. Richins next argues that the court of appeals misinterpreted
    State v. Verde, 
    2012 UT 60
    , ¶ 47, 
    296 P.3d 673
    , abrogated on other
    grounds by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    , to conclude
    that the evidence could be admitted under the doctrine of chances.
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    A. The Court of Appeals Correctly Concluded That Rebutting
    a Claim of Fabrication is a Proper Noncharacter Purpose
    ¶41 Richins first argues that the court of appeals erred when it
    held that rebutting a claim of fabrication was a permissible
    noncharacter purpose for admitting the other-acts evidence. See State
    v. Richins, 
    2020 UT App 27
    , ¶¶ 20, 22, 
    460 P.3d 593
    .
    ¶42 Utah Rule of Evidence 404(b)(1) excludes “[e]vidence of a
    crime, wrong, or other act . . . to prove a person’s character in order
    to show that on a particular occasion the person acted in conformity
    with the character.” But Rule 404(b)(2) permits the use of prior-acts
    evidence “for another purpose, such as proving motive, opportunity,
    intent, preparation, plan, knowledge, identity, absence of mistake, or
    lack of accident.” We have held that this list is not exhaustive such
    that “evidence demonstrating other purposes is not precluded so
    long as the evidence is offered for a legitimate purpose other than to
    show the defendant’s propensity to commit the crime charged.” State
    v. Allen, 
    2005 UT 11
    , ¶ 17, 
    108 P.3d 730
    .
    ¶43 One way to think of rule 404(b)(2)’s list is as circumstances
    where we have concluded that evidence of past acts might be
    presented to the jury in a way that will direct the jury away from the
    improper propensity inference that rule 404(b) is designed to protect
    against. That is, we recognize the potential for the jury to draw the
    inference from prior-acts evidence that because the defendant did
    this kind of thing before, he did it on the charged occasion. And rule
    404(b)(1) maintains that such an inference would be improper. But
    we nevertheless believe that when prior-acts evidence is introduced
    for another purpose under rule 404(b)(2), we can trust the jury to
    maintain its focus on the permissible, non-propensity-based
    inference.
    ¶44 In Verde, we effectively added to rule 404(b)’s list of
    permissible purposes. There, we adopted the “doctrine of chances”
    which “defines circumstances where prior bad acts can properly be
    used to rebut a charge of fabrication.” 
    2012 UT 60
    , ¶¶ 47, 56. We
    described the doctrine as “a theory of logical relevance that ‘rests on
    the objective improbability of the same rare misfortune befalling one
    individual over and over.’” Id. ¶ 47 (citation omitted).
    ¶45 In Verde, we reasoned that under the doctrine of chances,
    prior-acts evidence “tends to prove a relevant fact without relying on
    inferences from the defendant’s character.” Id. ¶ 51. That is, when
    presented with evidence to rebut a claim of fabrication under the
    doctrine of chances, a jury can, at least in theory, examine the
    evidence to conclude that it is unlikely, as a matter of probability,
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    STATE v. RICHINS
    Opinion of the Court
    that an accuser is fabricating the accusation because of the
    unlikelihood of an innocent person being accused of the same thing
    over and over. And it can, again at least in theory, draw that
    inference without resorting to the inference that rule 404(b)
    prohibits: that the defendant committed the charged offense because
    he has a propensity to commit this type of crime. We were willing,
    therefore, to open the door to prior-acts evidence to disprove a claim
    of fabrication. Id. ¶ 20. But we did so fully aware of the realities of
    opening that door. We acknowledged “there is a risk of an undue
    inference that the defendant committed each act because of the
    defendant’s immoral character.” Id. ¶ 51.
    ¶46 Richins picks up on our caution about the risk of undue
    inferences. Richins argues that when evidence is introduced to rebut
    a claim of fabrication under the doctrine of chances, we ask too much
    of a trier of fact when we ask it to separate the permissible
    probability-based inference from the impermissible propensity-
    based inference.
    ¶47 Richins explains that, in other contexts, evidence might be
    admitted with a much-reduced risk that the jury will draw the
    propensity-based inference. He offers an example. A defendant
    commits an armed robbery and leaves his gun with a unique serial
    number at the scene of the crime. The prosecutor obtains evidence
    that the defendant stole the gun bearing that serial number before
    the robbery. It is possible that the jury could perceive the evidence
    that the defendant stole this specific gun as character evidence—after
    all, it suggests he has a general propensity to steal. This would be an
    improper inference that we would need to guard against.
    ¶48 But Richins argues that evidence of the gun store robbery
    could nevertheless be properly admitted in this hypothetical trial
    because the evidence’s “predominant inference is a non-propensity
    inference.” Richins implies that the jurors are more likely to draw the
    proper inference that, because we know the defendant stole the gun
    with this serial number, and that exact gun was left at the crime
    scene, the defendant was therefore at the crime scene. Under these
    kinds of circumstances, he argues that “a bright-line often separates”
    proper and improper inferences. And we can use that bright line to
    help the jury navigate the boundary between the competing
    inferences.
    ¶49 Richins argues that is not the case when evidence is
    admitted under the doctrine of chances to rebut a claim of
    fabrication. Richins claims that when the statements of former
    accusers are admitted to rebut a claim of fabrication, this evidence
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    does little more than invite the jury to indulge the improper
    inference that rule 404(b) is aimed at preventing. That is, when the
    proffered reason for admitting prior acts is to prove that the accuser
    is not fabricating the accusation, it is far more likely that the jury will
    conclude that because the defendant engaged in this activity before,
    he engaged in it in this instance because he is the sort of person who
    commits this sort of crime.
    ¶50 Richins acknowledges that Verde permitted the State to
    invoke the doctrine of chances to rebut a claim of fabrication, but he
    claims that there is some wiggle room in our precedent that would
    allow us to disavow that use. He points out that Verde held that
    evidence rebutting a claim of fabrication is only “potentially
    admissible.” Verde, 
    2012 UT 60
    , ¶ 51. Verde also cautioned that a
    “charge of fabrication is insufficient by itself to open the door to
    evidence of any and all prior bad acts.” Id. ¶ 55.
    ¶51 Richins contends that the court of appeals has disregarded
    these caveats and adopted a “categorical rule” that rebutting a claim
    of fabrication is a proper noncharacter purpose. He argues that
    “[t]he court of appeals erred because it allowed a charge of
    fabrication, riding the coattails of the doctrine of chances, to fling the
    door on the propensity ban wide open without considering the
    evidence’s true and predominant propensity purpose.”
    ¶52 Moving to the facts of his case, Richins argues that “the
    only inference the other-acts evidence supported was a strict-
    propensity inference, and as such, the court of appeals erred when it
    affirmed the evidence’s admission.” He posits that “just because the
    evidence here was dressed-up under the doctrine of chances does
    not mean it had a proper non-propensity purpose.” And he asks us
    to “hold that [the doctrine of chances] cannot be used to rebut a
    claim of fabrication.”
    ¶53 Richins raises valid concerns about the application of the
    doctrine of chances to show that a witness is not fabricating her
    allegation. We especially take Richins’s point that when the State
    presents prior-acts evidence and uses the doctrine of chances as the
    analytical model, the gap between the proper and improper
    inferences can be thin to the point of being theoretical. And we agree
    with Richins that we are asking a jury to deploy a substantial degree
    of mental discipline when we ask it to consider a defendant’s past
    acts to assess whether his accuser is making up the allegations, but to
    simultaneously not consider whether the fact that the defendant has
    committed the prior acts means he has a propensity to commit those
    crimes.
    13
    STATE v. RICHINS
    Opinion of the Court
    ¶54 Whatever the merits of Richins’s arguments, a major
    roadblock exists to our casting Verde aside. Richins has not expressly
    asked us to overturn it and therefore has not attempted to meet the
    burden a party faces when asking us to reverse our precedent.
    Overturning precedent is not something that we do easily. See
    Eldridge v. Johndrow, 
    2015 UT 21
    , ¶ 21, 
    345 P.3d 553
    . Without briefing
    aimed at that burden, we keep Verde’s core holding in place and
    leave open the possibility that, in an appropriate case, a party could
    employ the doctrine of chances to rebut a claim of fabrication. See
    Verde, 
    2012 UT 60
    , ¶¶ 47, 56.
    ¶55 But Richins’s argument, together with the criticism that the
    court of appeals (in this case and others) has leveled at the doctrine
    of chances, have convinced us that if the doctrine is to remain part of
    our jurisprudence, it needs to be employed in a more disciplined
    fashion and district courts need to be more transparent in explaining
    their reasoning. We explain the increased rigor we direct the courts
    to apply as we address Richins’s other arguments.5
    _____________________________________________________________
    5  When we remand a case for further proceedings, we allow
    ourselves the discretion to address issues that might arise on
    remand. State v. Ogden, 
    2018 UT 8
    , ¶ 25, 
    416 P.3d 1132
    . Absence of
    mistake was one of the three “proper” non-character purposes that
    the district court held would justify the admission of the other-acts
    evidence. The district court concluded that the evidence could be
    admitted because the prior acts were relevant to show that Daughter
    was not mistaken about what she saw. Richins objected that 404(b)’s
    reference to absence of mistake only encompasses situations where a
    defendant asserts a defense of his or her own mistake. In other
    words, Richins claimed that absence of mistake applies only where a
    defendant claims that, in a crime with a mens rea element, she did
    not act with the requisite mental state because she was mistaken. See
    supra ¶ 17.
    The court of appeals appears to have not addressed Richins’s
    argument head-on. But at times it referred to “mistake and
    fabrication defenses” or “mistake or fabrication” in the same breath.
    Richins, 
    2020 UT App 27
    , ¶ 31. The State does the same in its briefing
    to us, referring to “Richins’s false-accusation or mistake defenses.”
    To the extent the court of appeals equated fabrication with absence
    of mistake, we note that those two justifications implicate different
    doctrine of chances concerns and should be analyzed separately.
    Also, to the extent absence of mistake was an independent ground to
    (continued . . .)
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    B. The Court of Appeals Erred in Upholding the District Court’s
    Admission of the Other-Acts Evidence
    ¶56 Richins next argues that even if prior-acts evidence can be
    admitted under the doctrine of chances to rebut a charge of
    fabrication, the court of appeals improperly applied the doctrine.
    Richins correctly notes that we have permitted use of the doctrine of
    chances where the evidence’s proponent can satisfy four threshold
    showings: materiality, similarity, independence, and frequency.
    Verde, 
    2012 UT 60
    , ¶¶ 57–61. Richins argues that the court of appeals
    erred because the district court did not have an adequate basis to
    conclude that the other-acts evidence was material to an issue in
    “bona fide dispute.” Richins also argues that the district court lacked
    a basis to conclude that the prior acts had occurred with sufficient
    frequency. We agree with Richins that the district court’s analysis
    did not allow the court of appeals to conclude that the evidence was
    admitted properly under the doctrine of chances.
    1. The Court of Appeals Did Not Err When It Concluded That the
    Other-Acts Evidence Was Material to a Disputed Issue
    ¶57 Richins first argues that the materiality requirement of the
    doctrine of chances was not satisfied. To meet the materiality
    element of admissibility under the doctrine of chances, “[t]he issue
    for which the uncharged misconduct evidence is offered ‘must be in
    bona fide dispute.’” Verde, 
    2012 UT 60
    , ¶ 57 (citation omitted).
    admit the evidence, the State has not asked us to affirm the court of
    appeals on this basis.
    Even if the State had, we could not say that the basis was
    apparent on the record before us. The State has not pointed us to any
    case in which a court has admitted rule 404(b) evidence to show that
    the witness was not mistaken. We also note that absence of mistake
    under federal rule 404(b) (which is identical to our rule 404(b) in this
    respect) is a “subsidiary of the intent exception” and that “evidence
    can fall under the exception for absence of mistake or inadvertence
    when it shows defendant was aware of the nature of an act at an
    earlier point, making it unlikely he would not have known at the
    time of the charged crime.” 2 CRIM. PRAC. MANUAL § 60:7, Westlaw
    (updated June 2021). We offer no opinion on whether demonstrating
    that a witness is not mistaken would be a proper non-character
    purpose, and leave the question for a case in which the issue is
    briefed.
    15
    STATE v. RICHINS
    Opinion of the Court
    ¶58 We impose this requirement so we can determine “at the
    threshold whether the evidence is presented for a proper purpose, or
    only for the purpose of suggesting an improper inference of action in
    conformity with alleged bad character.” Id. ¶ 24. Stated differently,
    we understand that evidence of a defendant’s prior bad acts can be
    powerful evidence that carries with it the potential for the jury to
    draw both proper and improper inferences.6 To help ensure that the
    doctrine of chances does not become an end run around rule 404(b),
    we ask the district court to analyze whether the prior act evidence is
    actually material to a disputed issue.7
    _____________________________________________________________
    6 To be clear, certain inferences are improper because Utah Rule
    of Evidence 404(b)(1) prohibits the use of “[e]vidence of a crime,
    wrong, or other act . . . to prove a person’s character in order to show
    that on a particular occasion the person acted in conformity with the
    character.” But, for some categories of evidence, such as a criminal
    case where the defendant is accused of child molestation, we
    expressly permit the jury to consider evidence that the defendant has
    molested children before to prove a propensity to commit that
    particular crime. See UTAH R. EVID. 404(c). These are questions of
    policy that reflect our desire to have a system that is fair to
    defendants, victims, and the public. This case highlights the tension
    inherent in attempting to simultaneously maintain a bar on character
    evidence and a doctrine that invites the jury to examine past acts
    through a probability-focused lens.
    7 For some time, we attempted to impose rigor on the district
    court’s consideration of prior-acts evidence by instructing those
    courts to “scrupulously examine[]” that evidence before its
    admission. See State v. Lucero, 
    2014 UT 15
    , ¶ 36, 
    328 P.3d 841
     (quoting
    Verde, 
    2012 UT 60
    , ¶ 13), abrogated by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    . But in State v. Thornton, we jettisoned that standard
    because we concluded it had become “more confusing than helpful.”
    
    2017 UT 9
    , ¶ 47. We reiterated that the tests for admissibility are
    those of the Utah Rules of Evidence. See id. ¶ 54.
    When we disavowed the “scrupulously examine” standard, we
    reinforced the need for a “careful trial judge” to “march[] through
    the standards set forth in rules 404(b), 402, and 403.” Id. And we
    noted that a judge who presents her “analysis on the record” “will be
    better-positioned” to have her “decision on admissibility of prior
    misconduct evidence affirmed on appeal.” Id. We highlight,
    underscore, bold, italicize, and place in all caps that advice.
    (continued . . .)
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    Opinion of the Court
    ¶59 Richins argues that the court of appeals incorrectly
    identified the bona fide dispute in this case. The court of appeals
    concluded that the disputed issue to which the evidence spoke was
    “whether [Daughter] falsely accused Richins.” Richins, 
    2020 UT App 27
    , ¶ 24. But that is not what the district court based its materiality
    ruling on.
    ¶60 The district court’s materiality analysis consisted of a single
    sentence: “The court finds that the proposed 404(b) evidence is
    material inasmuch as it address[es] issues that are clearly in dispute,
    namely what [Daughter] saw.” Richins argues that when the district
    court defines materiality at this level of generality, it revives the
    “not-guilty rule” that we rejected in Verde. See 
    2012 UT 60
    , ¶¶ 21–22.
    The “not-guilty rule” provided that a not-guilty plea put every
    element of a crime at issue. 
    Id.
     In the 404(b) context, this allowed
    prosecutors to argue that prior-acts evidence could be admitted to
    show intent, even if the defendant did not focus his defense on the
    intent element of the crime.
    ¶61 In Verde, we recognized that “the technical relevance of
    evidence of a defendant’s intent is not enough to justify the
    admissibility of evidence of prior bad acts purportedly aimed at
    establishing intent under rule 404(b).” Id. ¶ 22. We cautioned that
    “[f]idelity to the integrity of the rule requires a careful evaluation of
    the true—and predominant—purpose of any evidence proffered
    under rule 404(b).” Id. We further highlighted the need for focused
    attention on the purpose for which the evidence would be admitted.
    Id. We recognized that focus could help a court discern whether the
    true purpose of the evidence would be one rule 404(b) renders
    improper. Id. We also recognized that it would assist a court to
    evaluate whether any permissible purpose is outweighed by the
    evidence’s ability to give rise to an improper inference and whether
    the evidence’s potential to prejudice or confuse the jury outweighs
    its value. Id.
    ¶62 Those concerns become even more acute when the State
    intends to use the doctrine of chances to justify the admission of
    prior-acts evidence. The already-thin gap between the permissible
    and impermissible inferences can narrow even further when the
    State is allowed to argue probability to the jury. The ability of the
    Although failure to create an adequate record is not per se error, we
    implore the courts tasked with applying the doctrine of chances to
    explain their reasoning in detail and with precision of thought.
    17
    STATE v. RICHINS
    Opinion of the Court
    district court to assess the size of the gap, and the corresponding risk
    that the jury would indulge the improper inference, can be
    compromised by imprecise thinking. And the ability of an appellate
    court to assess whether the district court abused its discretion is
    severely weakened by general and imprecise analysis.
    ¶63 Although we recognize Richins’s concerns, the court of
    appeals did not revivify the not-guilty rule. The district court
    defined the issue in dispute as “what [Daughter] saw.” That
    corresponded to the way that Richins intended to defend himself. He
    did not plan to argue that Daughter made the story up, or directly
    argue that she was mistaken in what she saw, but rather, in Richins’s
    words, to “highlight Daughter’s own doubts about what she may
    have seen.” And it appears that he intended to argue that Daughter
    had been preconditioned to see him as a creepy letch entirely capable
    of engaging in highly inappropriate public behavior.
    ¶64 The district court did not call this a defense of fabrication.
    Nor did it analyze it as such. But the court of appeals concluded that
    when the district court referenced “what [Daughter] saw,” it was
    describing a fabrication defense. The court of appeals reasoned that
    whether Daughter “intentionally lied about seeing Richins expose
    himself or whether she subconsciously jumped to the conclusion that
    he exposed himself does not change Richins’s basic assertion that he
    was falsely accused.” Richins, 
    2020 UT App 27
    , ¶ 21. The court of
    appeals concluded that, “under the principles set forth in Verde, this
    distinction between intentional fabrication and involuntary bias is
    without significance in our analysis.” 
    Id.
    ¶65 As an initial matter, we disagree with the court of appeals’
    assessment that there was no significance in the different ways the
    district court and the court of appeals described the relevant issue.
    The distinction may be minor, but it is there. And when we are
    talking about assessing the jury’s ability to distinguish between
    permissible and impermissible inferences, small distinctions have
    the potential to take on outsized importance.
    ¶66 Under the district court’s articulation, the State presents the
    jury with the evidence of Richins’s other acts and asks it to conclude
    that Daughter is likely to have seen what she said she saw because
    Richins has engaged in this behavior before. Under the court of
    appeals’ rebuttal of the fabrication rationale, the State asks the jury to
    conclude that it is unlikely that Daughter is making up what she saw
    because Richins has been accused of similar acts before and the odds
    of five people fabricating their story are extremely long. Admittedly,
    the gap between the permissible and impermissible inferences is
    18
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    Opinion of the Court
    extremely slight in both instances. But under the district court’s
    “what [Daughter] saw” rationale, there appears to be even less
    opportunity to guide the jury away from the impermissible
    propensity-based inference.
    ¶67 That having been said, under either articulation, the
    evidence the State sought to introduce spoke to a material issue that
    was in bona fide dispute. This case is not like Verde, where we
    discounted the State’s argument that it could introduce the prior-acts
    evidence to demonstrate intent even though Verde had not contested
    his intent at trial. See Verde, 
    2012 UT 60
    , ¶ 25. Although Richins
    gamely attempted to articulate a defense that did not focus on the
    question of which version of what happened that morning was
    correct, all paths led to the jury needing to decide whether it
    believed Richins or Daughter.
    ¶68 Richins may not have used the word fabrication, but his
    defense put at issue whether Daughter’s account was correct. As
    such, this is not a case where the State was attempting to sneak in
    prior-acts evidence by claiming it pertained to an issue it did not.
    The court of appeals did not err when it concluded that the district
    court properly found that the other-acts evidence was material.8
    _____________________________________________________________
    8 We have stated that the doctrine of chances needs to be applied
    with care and precision and that the “care and precision begin with
    the party seeking to admit a prior bad act under the doctrine of
    chances.” State v. Argueta, 
    2020 UT 41
    , ¶ 34, 
    469 P.3d 938
    . “This party
    must articulate the ‘rare misfortune’ that triggers the doctrine’s
    application” because “[w]ithout a clear articulation of what event is
    being evaluated it is difficult to make sure that a prior bad act is
    admissible under the doctrine for a permissible inference. 
    Id.
    Here, whatever efforts the State made to assist in this, the district
    court never defined the rare misfortune that Richins suffered. The
    closest the district court came was to reference “allegations” when it
    discussed frequency. Careful thinking about how to define the rare
    misfortune will assist the court in identifying potential issues with
    the foundational factors and assist the court in identifying the
    permissible and impermissible inferences the prior-acts evidence
    will present to the jury. To pick up on a theme we started in
    Thornton, see 
    2017 UT 9
    , ¶ 54 & n.6, and continued in Argueta, a
    careful trial judge who wants her doctrine of chances ruling to be
    upheld on appeal will greatly increase the odds of affirmation if she
    carefully defines what the rare misfortune at issue is.
    19
    STATE v. RICHINS
    Opinion of the Court
    2. The Court of Appeals Incorrectly Analyzed Frequency Under the
    Doctrine of Chances
    ¶69 The frequency element of the doctrine of chances requires
    that “[t]he defendant must have been accused of the crime or
    suffered an unusual loss ‘more frequently than the typical person endures
    such losses accidentally.’” Verde, 
    2012 UT 60
    , ¶ 61 (citation omitted).
    Richins argues first that the district court lacked a foundation to
    conclude that Richins suffered a rare misfortune more frequently
    than the typical person. Richins also argues that the district court
    erred when it compared Richins to a “typical person” and not a
    typical sex offender.
    ¶70 Richins argues that the court of appeals erred in upholding
    the admission of the other-acts evidence because the district court
    did not establish a baseline frequency with which a person could
    expect the rare misfortune to occur. We agree.9
    ¶71 The district court’s entire frequency analysis consisted of
    the sentence: “[T]he court find[s] that the State has met the frequency
    requirement, inasmuch as four allegations in seven years is clearly
    more accusations that a ‘typical’ person would endure.” The court of
    appeals affirmed the district court’s bare-bones finding. Richins, 
    2020 UT App 27
    , ¶ 27. The court of appeals opined that it was “not
    persuaded that being accused of the same lewd conduct on five
    separate occasions by five different women is in any way typical of
    the comparative population.” 
    Id.
     As for what it relied on to reach
    that conclusion, the court of appeals noted, “Utah courts have
    typically applied the frequency prong of the doctrine of chances
    without resort to statistical data, instead relying on common human
    experience.” 
    Id.
     ¶ 27 n.5.
    ¶72 We agree with Richins that this analysis was inadequate.
    The district court’s finding was based on its own sense of the
    question—its “intuition” about how frequently the rare misfortune
    _____________________________________________________________
    9 The State argues that Richins did not preserve this argument
    because he did not ask the trial court to require the State to produce
    “hard statistical data” to satisfy the frequency factor. It is true that
    Richins did not ask for hard data below, but he did argue that the
    events occurred too infrequently to meet the foundational threshold.
    This was sufficient to preserve the issue that Verde and its progeny
    required the State to establish the predicted frequency of the rare
    misfortune.
    20
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    Opinion of the Court
    would occur in the general population. And the court of appeals’
    conclusion was based on the same. Id. ¶ 27. We rejected that type of
    conclusory analysis in State v. Argueta, 
    2020 UT 41
    , ¶ 39, 
    469 P.3d 938
    .
    ¶73 The State had charged Argueta with burglary and forcible
    sexual abuse. Id. ¶ 8. He allegedly entered someone else’s house at
    night and inappropriately touched a woman while she was in a
    hypnagogic state. Id. ¶ 5. At trial, Argueta testified that he was in the
    house because the victim’s boyfriend owed him $20 and had
    promised to pay him back whenever Argueta came by his house. Id.
    ¶ 9. Argueta claimed he swung by to pick up the double sawbuck,
    saw that keys had been left in the front door, worried about the
    residents’ safety, and entered the apartment to put the keys inside.
    Id. ¶ 10.
    ¶74 To rebut Argueta’s story, the district court allowed the
    State to introduce evidence that Argueta had previously been found
    trespassing near one woman’s house. Id. ¶ 11. The district court also
    permitted the State to tell the jury that Argueta had peeped into
    another woman’s window. Id. The district court allowed the
    evidence to be admitted under the doctrine of chances. Id. ¶ 12. The
    court of appeals held that Argueta did not properly preserve his
    challenge to the peeping incident but that the trial court erred in
    admitting the trespassing incident. Id. The court of appeals
    concluded that the trespassing incident was inadmissible because
    two of the foundational requirements of the doctrine of chances—
    frequency and similarity—were not met. Id. ¶ 36.
    ¶75 On certiorari review, we noted that the court of appeals
    had intuited that “[o]ne trespassing conviction does not increase the
    statistical likelihood that on a different occasion” the defendant had
    trespassed. Id. ¶ 43 (alteration in original) (citation omitted). But we
    noted that we could not affirm that conclusion because the record
    lacked a basis to support it. We held that a court cannot assess
    frequency “solely on intuition.” Id. ¶¶ 39, 42–43. We concluded that
    “[t]o evaluate the frequency of a ‘rare misfortune,’ a court must
    ascertain some benchmark for the ‘typical person[’s]’ endurance of
    the crime or unusual loss through testimony or judicial notice.” Id.
    ¶ 39 (second alteration in original) (quoting State v. Lane, 
    2019 UT App 86
    , ¶ 49, 
    444 P.3d 553
     (Harris, J., concurring). We opined that
    “[w]ithout such a benchmark, the frequency requirement in Verde is
    only empty words.” 
    Id.
    ¶76 In fairness to the district court and the court of appeals in
    the case before us, we may have been slow to grasp the full scope of
    21
    STATE v. RICHINS
    Opinion of the Court
    the issues surrounding the use of intuition and common
    understanding to assess the frequency with which we should
    anticipate that events will occur. As we see it play out in practice, we
    grow concerned with the practice of not requiring the State to
    forward evidence to establish the frequency with which we should
    expect certain events to occur. For example, in Argueta the district
    court implicitly found frequency satisfied based upon one incident
    of trespass and one incident of peeping. See id. ¶ 11. But the district
    court did not have anything other than its intuition to guide its
    decision. Id. ¶¶ 42–43. Similarly, courts have, without the benefit of
    evidence to confirm their general sense of the probability, found
    frequency satisfied based upon a single prior robbery. See State v.
    Lomu, 
    2014 UT App 41
    , ¶ 32, 
    321 P.3d 243
    .
    ¶77 We are becoming increasingly uneasy because when we ask
    district courts to assess frequency without the benefit of data, we are
    inviting them to draw on stereotypes and assumptions that may not
    hold true. This is part of what inspired the Argueta court to conclude
    that courts need to stop trusting their intuition about probabilities
    and need to establish a baseline from which a frequency analysis can
    proceed. See Argueta, 
    2020 UT 41
    , ¶ 39.
    ¶78 A scholar of the doctrine of chances has posited a
    hypothetical that helps illuminate that when it comes to assessments
    of frequency, our intuition may be an unreliable guide. See Edward J.
    Imwinkelried, The Use of Evidence of an Accused’s Uncharged
    Misconduct to Prove Mens Rea: The Doctrines Which Threaten to Engulf
    the Character Evidence Prohibition, 51 OHIO ST. L.J. 575, 586–88 (1990).
    Professor Imwinkelried analyzes the facts of United States v. Woods,
    
    484 F.2d 127
     (4th Cir. 1973). In Woods, as Professor Imwinkelried
    explains, the head of an orphanage stood accused of infanticide after
    a child in her care suffocated. Imwinkelried at 586. The prosecution
    proposed to introduce evidence that, over a twenty-five year period,
    twenty other children in the orphanage had suffered cyanotic
    episodes—episodes of reduced blood flow from the lungs that can
    lead to suffocation. 
    Id.
     The prosecution offered the evidence under
    the doctrine of chances to demonstrate that the rate of cyanosis in the
    orphanage suggests that the cause of the episodes is not accidental.
    
    Id.
    ¶79 If we were to rely on our intuition, we might be tempted to
    conclude that twenty-one cyanotic incidents in the orphanage must
    be more than what is possible based on chance alone—that they
    must imply some improper conduct on part of the accused. After all,
    twenty-one episodes in twenty-five years sounds like an alarming
    22
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    Opinion of the Court
    number. But, as Professor Imwinkelried hypothesizes, if statistics
    showed that two percent of American children suffer cyanotic
    episodes, and the accused has cared for 3,000 children during the last
    two and a half decades, then the children in the accused’s care have
    actually fared better than children who don’t live in the orphanage.
    Id. at 591. This helps us understand that we don’t always know what
    we think we know. Developing the relevant baseline matters.10
    _____________________________________________________________
    10 The State argues that we have never required a statistician to
    opine or required a party to introduce “hard statistical data” in every
    case. We are not suggesting that the State must call a statistical
    expert every time it wants to use the doctrine of chances. As
    Professor Imwinkelried notes, there exist a variety of ways to
    establish a baseline frequency:
    There may be pre-existing data compilations.
    Government agencies or private research organizations
    might have gathered empirical data, for example, in the
    form of an epidemiological study. The studies may be so
    authoritative that the data is judicially noticeable, or the
    study may fall within the learned treatise exception to the
    hearsay rule.
    Imwinkelried at 591 (citations omitted). And, “[i]f the data has not
    been compiled but it is accessible, the prosecutor can retain an expert
    to use recognized statistical techniques to gather the data
    establishing the frequency.” Id.
    Professor Imwinkelried further concludes that “[f]ailing all other
    methods, the prosecutor can ask the judge to rely on her conception
    of common, human experience to resolve the question.” Id. The State
    echoes this, arguing that a court can take notice of facts within
    “common experience or knowledge” such as “facts relating in
    general to the prevalence of crime.” But it is this final method that
    we fear can lead the court into unwitting error. A personal sense of
    the anticipated frequency with which we would expect an act to
    occur is not a “fact” that generally relates to the prevalence of crime.
    Nor is it necessarily within our common experience or knowledge.
    To guard against the potential to err, a court should require the State
    to introduce evidence to establish the baseline probability. To be
    clear, a court may, by following Utah Rule of Evidence 201, take
    judicial notice of facts not subject to reasonable dispute because they
    are either “generally known” or “can be accurately and readily
    determined from sources whose accuracy cannot reasonably be
    (continued . . .)
    23
    STATE v. RICHINS
    Opinion of the Court
    ¶80 That benchmark is lacking here. The district court relied
    solely on its own intuition to establish the frequency with which we
    would expect a typical person to be accused of public masturbation.
    This was error. The court of appeals erred when it concluded that the
    district court did not abuse its discretion when it admitted the other-
    acts evidence under the doctrine of chances.
    ¶81 Richins also argued to the court of appeals that to establish
    a baseline, the district court needed to focus on the frequency with
    which someone in Richins’s particular position could have been
    expected to suffer the rare occurrence. Richins, 
    2020 UT App 27
    , ¶ 27.
    The court of appeals rejected this argument, noting that “Utah courts
    have never required such tailoring of data to reflect the number of
    accusations against a specific population.” 
    Id.
    ¶82 Although Richins argues that this was error, Richins cites to
    no case in which a court has deviated from looking at the extent to
    which a typical person would suffer the loss. Nor does Richins
    engage with the number of cases in which we have held that “the
    typical person” is the proper comparison to assess frequency under
    the doctrine of chances. Verde, 
    2012 UT 60
    , ¶ 61 (citation omitted); see
    also Argueta, 
    2020 UT 41
    , ¶ 39 (explaining that frequency requires
    that “the defendant ‘must have been accused of the crime or suffered
    an unusual loss more frequently than the typical person endures
    such losses accidentally.’” (citation omitted)); State v. Lopez, 
    2018 UT 5
    , ¶ 57, 
    417 P.3d 116
     (affirming this standard); State v. Lowther, 
    2017 UT 34
    , ¶ 38, 
    398 P.3d 1032
     (same); see also Lomu, 
    2014 UT App 41
    ,
    ¶ 32 (same); State v. Balfour, 
    2018 UT App 79
    , ¶ 31 n.8, 
    418 P.3d 79
    (same).
    ¶83 Richins instead cites to an article that contends, “Utah
    courts do not encounter ‘typical people’ as criminal defendants.”
    Andrea J. Garland, Beyond Probability: The Utah Supreme Court’s
    “Doctrine of Chances” in State v. Verde Encourages Admission of
    Irrelevant Evidence, 3 UTAH J. CRIM. LAW 6, 20 (2018). The article’s
    author argues that the odds of being arrested for a crime in Salt Lake
    County are so low that being accused of a crime just once is already
    atypical. 
    Id.
     The author thus argues that a criminal defendant will
    always have been accused of a particular crime more times than the
    typical person—negating the purpose of our frequency prong. 
    Id.
    questioned.” See UTAH R. EVID. 201(b). But a court should not
    confuse its assumptions for generally known facts.
    24
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    Opinion of the Court
    ¶84 Although Richins does not provide any other authority to
    support his argument, we note that Judge Harris leveled a similar
    criticism in Lane, 
    2019 UT App 86
    , ¶ 49 (Harris, J., concurring). Judge
    Harris very effectively denounced the district court’s analysis that a
    defendant who had been involved “with three serious assaults in
    four years” was “not mere accident.” 
    Id.
     Judge Harris criticized the
    district court for reaching that conclusion in the face of the
    defendant’s “chronic homelessness and the higher frequency of
    assault surrounding shelters.” 
    Id.
     Judge Harris reasoned:
    The court did not take any evidence to establish the
    profile of a “typical” resident of that part of Salt Lake
    City, or any evidence intended to establish a baseline
    regarding the number of physical altercations per year
    in which such a resident might typically be involved.
    Under these circumstances, I see no reasoned basis for
    the court’s intuition-level conclusion that a person
    living in that part of the city becoming involved in one
    fight every fifteen months is necessarily “frequent.”
    Bound up in that analysis are various assumptions by
    the court—arrived at without evidence—of what living
    conditions are like for homeless citizens of Salt Lake
    City. This is an instance where the court, in my view,
    needed to take additional evidence—from experts, if
    necessary—to arrive at a sound conclusion about
    whether the number of assaults in which [the
    defendant] was involved was atypical for a resident of
    that part of town.
    
    Id.
    ¶85 Richins and Judge Harris have diagnosed a potential
    weakness in the doctrine of chances’ application. There are
    undoubtedly people who will suffer certain rare losses at a greater
    rate than the population at large for reasons unrelated to the random
    probability rationale that powers the doctrine of chances. To take an
    extreme example, most people will live their lives without ever being
    struck by lightning. The National Weather Service estimates an
    American has only a 1 in 15,300 chance of being struck. How
    Dangerous       is     Lightning?      NAT’L     WEATHER         SERV.,
    www.weather.gov/safety/lightning-odds (last visited Aug. 5, 2021).
    But one ranger in Shenandoah National Park claimed to have been
    struck by lightning seven times. Tom Dunkel, Lightning Strikes: A
    Man Hit Seven Times, WASH. POST MAG. (Aug. 15,
    2013), https://www.washingtonpost.com/lifestyle/magazine/insid
    25
    STATE v. RICHINS
    Opinion of the Court
    e-the-life-of-the-man-known-as-the-spark-
    ranger/2013/08/15/947cf2d8-ea40-11e2-8f22-
    de4bd2a2bd39_story.html. Although that is an exceptional number,
    something might explain the frequency of the misfortune. A ranger
    assigned to work outdoors in a mountain range with prevalent
    lightning storms is likely to be struck by lightning more frequently
    than the typical person.
    ¶86 We do not believe that the answer to the problem is to
    tailor the data so it fits the subpopulation to which the defendant
    belongs. This would just breed disputes over how to define the
    relevant subpopulation and add another layer of complexity to an
    analysis that some of our courts already appear to be struggling to
    apply correctly. Rather than open that door, we prefer to emphasize
    two existing requirements that should, if applied properly, address
    the concerns Richins raises here and Judge Harris raised in Lane.
    ¶87 The first is the independence inquiry that a court must
    undertake before it can admit prior-acts evidence under the doctrine
    of chances.11 The non-propensity based probative value of prior-acts
    evidence comes from “the improbability of chance repetition of the
    same event.” Verde, 
    2012 UT 60
    , ¶ 60 (quoting Mark Cammack, Using
    the Doctrine of Chances to Prove Actus Reus in Child Abuse and
    Acquaintance Rape: People v. Ewolt Reconsidered, 29 U.C. DAVIS L. REV.
    355, 402 (1996)). As a result, any fact that suggests that the repetition
    is not the product of chance tends to show that the prior acts are not
    independent of one another. In that instance, something other than
    random chance might explain why the defendant has suffered the
    rare misfortune more frequently than the typical person.
    ¶88 For example, we have said that collusion between
    witnesses demonstrates a lack of independence. See Lopez, 
    2018 UT 5
    ,
    ¶ 56 (“The independence requirement helps ensure there is no
    _____________________________________________________________
    11 Perhaps because we have mostly spoken of independence in
    terms of collusion, and because there was no evidence of collusion
    between Daughter and Richins’s other accusers, Richins conceded
    independence before the district court. We therefore offer no opinion
    on whether the State satisfied its burden of demonstrating that the
    prior acts the district court admitted here were independent of one
    another. Nor do we opine on what the district court might have done
    with an argument that Daughter’s allegation was not independent of
    the others because Mother had warned Daughter to stay away from
    Richins.
    26
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    Opinion of the Court
    collusion between the victims and that the victims have not
    influenced each other’s recollections of what occurred.”). In the
    context of prior accusations, we cannot say that the accusations (and
    the details underlying those accusations) are truly the product of
    random chance if the accusers have discussed their accusations.
    ¶89 But collusion is not the only way to show a lack of
    independence. In Lane, for example, evidence that the defendant
    frequented a high-crime area where a person will often need to
    defend himself against violent attack suggests that the two times
    Lane was previously involved in a fight may not have been the
    product of random chance. See Lane, 
    2019 UT App 86
    , ¶ 49 (Harris, J.,
    concurring). A district court should, when assessing evidence
    through the lens of the doctrine of chances, be on the lookout for
    those factors that show that the random events a party wants to
    admit under the doctrine of chances aren’t actually random. And if
    the party seeking admission of the evidence cannot foreclose the
    possibility that something other than random chance or the
    probability-based inference she wants the jury to draw from the
    evidence explains why the defendant has suffered the rare
    misfortune at an unusual rate, the district court should not admit the
    evidence under the doctrine of chances.
    ¶90 The second safeguard exists in a proper rule 403 balancing
    analysis. District courts must recognize that when they conduct a
    rule 403 balancing, the doctrine of chances evidence does not have
    the same probative value when other factors explain why a
    defendant might suffer a particular loss more frequently than the
    average person. Similarly, the potential for unfair prejudice is even
    greater where there is an innocent reason why the defendant
    experiences the loss more frequently than the typical person.
    ¶91 Lane illustrates this. Lane experienced “chronic
    homelessness.” See 
    id.
     The State charged Lane with aggravated
    assault after he was involved in a fight that ended with Lane cutting
    a victim’s face three times with a knife. 
    Id.
     ¶¶ 2–3. Lane claimed self-
    defense. 
    Id.
     ¶¶ 7–8. The State sought to introduce evidence of two
    other instances where Lane had been involved in fights where he
    had cut his opponent’s face. 
    Id.
     The court of appeals assumed,
    without deciding, that the evidence could be admitted under 404(b).
    Id. ¶ 21. But the court held that the district court erred because
    evidence should have been excluded under rule 403. Id. ¶ 21-24.
    ¶92 The Lane court reasoned that “it is not highly strange or
    unlikely that Lane would need to defend himself multiple times over
    years of living in a high crime area.” Id. ¶ 24. It also concluded that
    27
    STATE v. RICHINS
    Opinion of the Court
    the State’s proffered use of the evidence would be “substantially
    outweighed by the unfairly prejudicial inference that Lane has the
    character of someone who continuously provokes altercations, cuts
    the faces of his victims, and then claims self-defense.” Id.
    ¶93 We can recharacterize the court of appeals’ analysis in the
    language of permissible and impermissible inferences. Assuming
    that the State could establish the baseline that Lane had been the
    victim of assaults that required him to defend himself more than a
    typical person, there are a number of inferences the jury could draw.
    It could permissibly infer that the fact Lane frequented a high crime
    area explains why he needed to defend himself so often. It could also
    permissibly infer that, as the State pressed, Lane fabricated his story
    of self-defense because he had claimed self-defense a number of
    times before and a typical person would not need to defend himself
    that many times. Or, the jury could draw the impermissible inference
    that he is the sort of person who gets into fights and cuts his
    opponent.
    ¶94 The Lane court opined that the probative value of the
    evidence was substantially outweighed by the risk of unfair
    prejudice. See id. ¶ 24. Although the court of appeals did not state so
    directly, the probative value of the inference that Lane had fabricated
    his self-defense claims was reduced because the other permissible
    inference offered another explanation for the frequency of Lane’s
    repeated misfortune. The risk of the jury latching onto the
    impermissible inference remained high because that risk is always
    high when we are dealing with prior-acts evidence. As such, the
    court of appeals correctly concluded that the evidence’s probative
    value was substantially outweighed by the danger of unfair
    prejudice. See id.
    ¶95 Simply stated, we agree with Richins that courts need to be
    attuned to factors that might explain why a defendant has suffered a
    rare misfortune more than the typical person. But we disagree with
    Richins’s conclusion that the way to deal with those factors is to
    compare the defendant to a similarly situated person. Instead, we
    instruct courts applying the doctrine of chances to carefully define
    the rare occurrence, assiduously evaluate whether the foundational
    factors have been satisfied, conduct a rule 403 analysis that focuses
    on the unique unfair prejudice that can flow from the admission of
    prior-acts evidence, and explain their reasoning in a transparent
    manner.
    ¶96 Because the State failed to establish the relevant baseline
    frequency, the district court erred when it admitted the other-acts
    28
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    Opinion of the Court
    evidence under the doctrine of chances. And the court of appeals
    erred when it affirmed the district court’s decision.
    II. WE REVERSE THE COURT OF APPEALS’ DECISION
    TO UPHOLD THE DISTRICT COURT’S CONCLUSION
    THAT RULE 403 DOES NOT REQUIRE THE EXCLUSION
    OF THE OTHER-ACTS EVIDENCE
    ¶97 Richins also asks us to reverse the court of appeals holding
    that the other-acts evidence did not run afoul of rule 403 of the Utah
    Rules of Evidence. See State v. Richins, 
    2020 UT App 27
    , ¶ 31, 
    460 P.3d 593
    . Richins argues the court of appeals erred in four ways when it
    held that the district court had properly applied rule 403.12 Richins
    needs to convince us that one of those arguments is correct to
    prevail. We agree with Richins that the court of appeals should not
    have affirmed the district court’s holding that rule 403 did not
    require exclusion of the other-acts evidence.13 The district court
    abused its discretion in admitting that evidence because the risk of
    unfair prejudice emanating from its admission substantially
    outweighed its probative value.
    ¶98 We have always envisioned that rule 403 would play a
    crucial role in the doctrine of chances analysis. In State v. Verde, we
    said that the “four foundational requirements . . . should be
    considered within the context of a rule 403 balancing analysis.” 2012
    _____________________________________________________________
    12 Richins first argues that “the similarity between the other-acts
    and the charged conduct increased the other-acts’ risk for unfair
    prejudice,” rather than reducing its risk of unfair prejudice, as the
    court of appeals concluded. Richins next argues that the court of
    appeals failed to balance the other-acts evidence’s probative value
    against its improper propensity tendency as part of its 403 analysis.
    Richins then contends that admitting the other-acts evidence via
    stipulation did little to actually limit the impermissible propensity
    inference based on the evidence. He last argues that the other-acts
    evidence—even if admissible under the doctrine of chances—should
    have been excluded as impermissible statistical evidence that
    Daughter was telling the truth under rule 403.
    13 Utah Rule of Evidence 403 provides that a “court may exclude
    relevant evidence if its probative value is substantially outweighed
    by a danger of one or more of the following: unfair prejudice,
    confusing the issues, misleading the jury, undue delay, wasting time,
    or needlessly presenting cumulative evidence.”
    29
    STATE v. RICHINS
    Opinion of the Court
    UT 60, ¶ 57, 
    296 P.3d 673
    , abrogated on other grounds by State v.
    Thornton, 
    2017 UT 9
    , ¶ 57, 
    391 P.3d 1016
    . We held that “even if 404(b)
    evidence appears to have a dual purpose—to be aimed at both
    proper and improper inferences—it may nonetheless be excluded
    under rule 403 if” it runs afoul of that rule’s balancing test. Id. ¶ 17.
    We also explained that “[f]idelity to the integrity of the rule requires
    a careful evaluation of the true—and predominant—purpose of any
    evidence” offered under the doctrine of chances. Id. ¶ 22. We
    explained that “if the evidence may sustain both proper and
    improper inferences under rule 404(b), the court should balance the
    two against each other under rule 403.” Id. ¶ 18. This evidence
    should be excluded if “any permissible purpose is outweighed by its
    propensity for an improper inference or for jury confusion about its
    real purpose.” Id. ¶ 22. We emphasized that this “weighing is
    essential to preserve the integrity of rule 404(b)” because without it,
    “evidence of past misconduct could routinely be allowed to sustain
    an inference of action in conformity with bad character—so long as
    the proponent of the evidence could proffer a plausible companion
    inference that does not contravene the rule.” Id. ¶ 18.
    ¶99 In Thornton, we reaffirmed the importance of rule 403 when
    a court considers prior-acts evidence. We said that the “court’s job
    under rule 404(b) is not to balance or weigh competing (proper and
    improper) inferences.” Thornton, 
    2017 UT 9
    , ¶ 59. Rather, that
    “weighing comes in under rule 403.” 
    Id.
     And we repeated our
    holding in Verde that “if 404(b) evidence appears to have a dual
    purpose—to be aimed at both proper and improper inferences—it
    may nonetheless be excluded under rule 403.” 
    Id.
     (quoting Verde,
    
    2012 UT 60
    , ¶ 17).14
    ¶100 In this case, the court of appeals noted the limitations of the
    district court’s rule 403 analysis. The court of appeals wished that the
    district court had been “more thorough,” but it nevertheless held
    that the district court’s analysis was sufficient. Richins, 
    2020 UT App 27
    , ¶ 31. We agree that the district court should have been “more
    thorough.” We reemphasize here that a district court must examine
    the specific probative value of the evidence being weighed under
    _____________________________________________________________
    14 We take this opportunity to amplify what we said in Thornton.
    If our jurisprudence is to embrace the use of the doctrine of chances,
    courts will need to perform a rule 403 inquiry that includes a
    weighing of the permissible and impermissible inferences the jury
    could take from prior acts evidence.
    30
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    Opinion of the Court
    rule 403 and also of all of its potential prejudicial effects. And that a
    district court must give attention to the unfair prejudice that can
    flow from a jury placing its faith in the impermissible inference. In
    other words, when considering a rule 403 challenge to doctrine-of-
    chances evidence, a district court must weigh the probative value of
    the proper inference against the risk that the jury will draw the
    impermissible evidence. The district court did not do that here.
    ¶101 But the court of appeals was willing to overlook the failings
    in the district court’s order. And the court of appeals gave three
    reasons why it believed the district court had correctly balanced the
    other-acts evidence’s probative value against the dangers rule 403
    identifies. See 
    id.
     The court of appeals first held that the evidence was
    admitted for a probative purpose: rebutting Richins’s fabrication
    defense. 
    Id.
     The court of appeals next reasoned that the stipulation
    that admitted the evidence “greatly sanitized” the other-acts
    evidence by removing inflammatory facts and eliminating “live
    victim testimony.” 
    Id.
     Finally, the court of appeals concluded that the
    risk of unfair prejudice was reduced because the district court
    instructed the jury that the evidence should not be used “to prove a
    character trait of the defendant.” 
    Id.
    ¶102 We agree with the court of appeals insofar as we agree it
    was important for the district court to have examined the purpose of
    the evidence’s admission and to have taken steps to mitigate
    potential unfair prejudice. But those measures cannot compensate
    for the district court’s failure to conduct the type of balancing that
    we described in Thornton.
    ¶103 Thornton instructs the district court to “balance or weigh
    competing (proper and improper) inferences. . . . under rule 403.”
    
    2017 UT 9
    , ¶ 59. The district court needed to identify the likely
    inferences the jury would draw from the other-acts evidence and
    then ask if the evidence’s probative value (the jury drawing a
    permissible inference) was substantially outweighed by the danger
    of unfair prejudice (the jury drawing an impermissible inference). If
    the district court were to conclude that the jury is substantially more
    likely to rely on an impermissible inference, the evidence must be
    excluded under rule 403. The district court did not engage in that
    analysis here, and it abused its discretion as a result. The court of
    31
    STATE v. RICHINS
    Opinion of the Court
    appeals then erred by upholding the district court’s admission of the
    other-acts evidence without that analysis.15
    ¶104 Had the district court employed this balancing, it should
    have concluded that the evidence’s probative value was
    substantially outweighed by the danger of unfair prejudice. This is
    because the district court identified the purpose for admitting the
    evidence as determining “what [Daughter] saw.” Under that
    articulation, there is little separating the impermissible inference
    from the permissible one. Although the purpose may be couched in
    terms of probability, the district court admitted the evidence to
    permit the jury to infer that Daughter saw what she said she saw
    because Richins was accused of doing the same thing before. The
    risk of the jury making a character-based inference substantially
    outweighs the probative value of the other-acts evidence under these
    circumstances.
    ¶105 The result does not change if we give the district court’s
    ruling the more generous gloss that the court of appeals did. They
    analyze the question as if the district court really meant that the
    other-acts evidence was admitted to rebut a claim of fabrication.
    Richins, 
    2020 UT App 27
    , ¶ 21. Under that articulation, there is a
    little, but only a little, more room between the permissible and
    impermissible inference. The non-propensity-based inference is that
    because Richins had been accused of similar behavior on four prior
    occasions, it is unlikely that Daughter fabricated a story that closely
    matched the other accusations. The impermissible inference is the
    same as before—because Richins did this type of thing before, he did
    it this time. But even in this posture, the risk of the jury resorting to
    the impermissible inference overwhelms the possibility that the jury
    will confine itself to focusing on the probability of fabrication. Stated
    differently, we have no confidence that, having told the jury that
    _____________________________________________________________
    15 This is not to suggest that the rule 403 balancing we described
    in Verde and Thornton displaces the other balancing that a district
    court must do under rule 403. Notions of unfair prejudice and issue
    confusion, as well as conventional assessments of probative value,
    are still fair game in the doctrine of chances context. But a district
    court will necessarily err if it fails to balance the permissible and
    impermissible inferences because a district court abuses its discretion
    when it misapplies the law. See State v. Barrett, 
    2005 UT 88
    , ¶ 16, 
    127 P.3d 682
     (“[T]rial courts do not have discretion to misapply the law.”
    (alteration in original) (citation omitted)).
    32
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    Opinion of the Court
    Richins engaged in this behavior previously, the jury would do
    anything other than indulge the inference rule 404(b) exists to
    prevent.
    ¶106 Although the district court erred by failing to exclude the
    evidence, we applaud two steps that the State and the district court
    took to mitigate the prejudice that would flow from the evidence’s
    admission. First, the State agreed to admit the evidence in through a
    stipulation that, to a large degree, sanitized the other-acts evidence
    by removing salacious and extraneous details. Second, the district
    court instructed the jury on the proper use of the other-acts evidence.
    In a different case, steps like these might have had a material impact
    on the rule 403 balancing. Here, however, the danger of the jury
    drawing the impermissible inference so substantially outweighed the
    evidence’s probative value that the stipulation and jury instruction
    could not have a curative effect. But we commend the district court
    for its decision to permit the stipulation and to instruct the jury
    about the proper use of prior acts evidence. We encourage other
    courts to do the same.
    III. ADMISSION OF THE OTHER-ACTS EVIDENCE
    PREJUDICED RICHINS
    ¶107 Richins argues that he should receive a new trial because
    admission of the other-acts evidence prejudiced him. “[A]n
    [evidentiary] error requires reversal only if there is ‘a reasonable
    likelihood of a more favorable result’ for the accused had the error
    not occurred.” State v. Lopez, 
    2018 UT 5
    , ¶ 30, 
    417 P.3d 116
     (alteration
    in original) (citation omitted). “A reasonable likelihood of a more
    favorable outcome exists if our confidence in the result of the trial is
    eroded.” 
    Id.
     (citation omitted).
    ¶108 Richins argues that, absent the other-acts evidence, the jury
    would have only heard the “uncertain” testimony of Neighbor and
    Daughter. Daughter testified that “[i]t kind of looked like [Richins]
    might have been masturbating.” Daughter also said it was “possible”
    that Richins wasn’t masturbating at all—that he had his “hands in
    his pockets.”
    ¶109 Neighbor’s testimony was similarly equivocal. She said that
    he “may have just had his hands clasped in front of him. That’s all I
    saw.” See also supra ¶¶ 4-7.
    ¶110 The State defends the strength of this testimony, opining
    that it was not “uncertain.” And, indeed, there are moments when
    Daughter testified more definitively. The State points to Daughter’s
    testimony that it “certainly looked like [Richins] was holding
    33
    STATE v. RICHINS
    Opinion of the Court
    something down near his pockets.” She also testified that Richins
    was “clearly holding something.” And she said that his hands were
    moving “in a back and forward motion.” But all this means is that
    the jury heard Daughter testify with varying degrees of certainty
    about what she saw. It does not negate the times the jury heard
    Daughter hedge.
    ¶111 We also know that during deliberations, the jury sent a note
    asking what they should do if they could not reach a verdict. See
    supra ¶ 31. This strongly suggests that, for a time, at least one juror
    entertained doubts of Richins’s guilt.
    ¶112 The jury sent this note even after the State had made the
    doctrine of chances a central talking point. The prosecutor began his
    opening statement by talking about “coincidences,” saying that there
    was a coincidence in the case with both his last name and birthday—
    but said that those two facts mean “nothing,” as they were “just
    coincidences” or “[r]andom facts” or “[r]andom occurrences.” See
    supra ¶ 26. He then claimed there would be “some data in this trial,
    some probabilities and some things like that, that actually will be
    firm and strong and sound enough that you can make conclusions
    based on that data.” See supra ¶ 27. He previewed both Daughter’s
    testimony and the other-acts evidence. See supra ¶ 28. He concluded
    his opening statement by directly linking Daughter’s testimony and
    the other-acts evidence as the two key components of his case,
    saying “because of this [other-acts] evidence and the evidence of
    [Daughter], we’ll be asking you to return a guilty verdict.” See supra
    ¶ 28.
    ¶113 In closing argument, the prosecutor asked, “So how is it
    when you apply that to these four separate allegations, right, and
    then [Daughter’s] description of the exact same conduct essentially,
    what are the odds of such a misfortune befalling Mr. Richins on five
    separate occasions?” See supra ¶ 29. Without the admission of the
    other-acts evidence, the prosecutor would have had no basis for
    these arguments. And the prosecutor would have been stuck with
    Daughter’s decidedly less-than-decisive testimony.
    ¶114 It is therefore not difficult for us to conclude that removing
    the evidence of the four other times Richins was accused of similar
    behavior would have impacted the jury such that “our confidence in
    the result of the trial is eroded.” Lopez, 
    2018 UT 5
    , ¶ 30 (citation
    omitted). We reverse the court of appeals and hold that, if the jury
    had not heard the other-acts evidence, Richins stood a reasonable
    likelihood of a more favorable outcome. Richins is entitled to a new
    trial.
    34
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    Opinion of the Court
    CONCLUSION
    ¶115 The court of appeals erred when it upheld the district
    court’s decision to admit evidence of Richins’s prior bad acts. The
    district court exceeded the bounds of its discretion because the State
    did not lay a proper foundation for the admission of the evidence
    under the doctrine of chances. Specifically, the State did not
    introduce evidence that would permit the district court to conclude
    that Richins had been accused of improper behavior more frequently
    than a typical person. In addition, the district court abused its
    discretion when it concluded that the probative value of the
    evidence was not substantially outweighed by the risk of unfair
    prejudice. The district court did not, as it is required to do, weigh the
    probative value of the permissible inference the State asked the jury
    to indulge against the danger that the jury would rely on the
    evidence to draw the impermissible inference. The court’s errors
    prejudiced Richins and he is entitled to a new trial. We reverse and
    remand.
    35