v. Bott , 2019 COA 100 ( 2019 )


Menu:
  •      The summaries of the Colorado Court of Appeals published opinions
    constitute no part of the opinion of the division but have been prepared by
    the division for the convenience of the reader. The summaries may not be
    cited or relied upon as they are not the official language of the division.
    Any discrepancy between the language in the summary and in the opinion
    should be resolved in favor of the language in the opinion.
    SUMMARY
    July 3, 2019
    2019COA100
    No. 15CA2149, People v. Bott — Criminal Law — Confessions —
    Corpus Delicti Rule; Crimes — Sexual Exploitation of a Child;
    Constitutional Law — Fifth Amendment — Double Jeopardy —
    Multiplicity
    In this criminal appeal, a division of the court of appeals
    concludes that the corpus delicti rule, in effect when the defendant
    allegedly committed the charged offenses, applies at trial because
    the supreme court’s decision abandoning the rule does not apply
    retroactively. The corpus delicti rule requires that the prosecution
    present evidence independent of the defendant’s confession to
    establish that a crime occurred.
    The defendant was charged with sexually assaulting his
    newborn daughter in 2004. At the 2015 trial, in addition to the
    defendant’s admission made during sex offender treatment, the
    prosecution presented evidence that defendant had frequently
    changed his daughter’s diaper and that, in 2014, he possessed
    child pornography. The division concludes that the evidence was
    insufficient to satisfy the prosecution’s burden under the corpus
    delicti rule and therefore vacates the defendant’s sexual assault on
    a child convictions.
    The division also interprets the sexual exploitation of a child
    statute to determine the unit of prosecution for possession of child
    pornography. Based on the plain language, the division concludes
    that the unit of prosecution is the act of possession, not the
    individual image. Accordingly, defendant committed a single
    offense of possession of more than twenty images, and therefore
    eleven of his sexual exploitation of a child convictions must be
    vacated.
    COLORADO COURT OF APPEALS                                         2019COA100
    Court of Appeals No. 15CA2149
    El Paso County District Court Nos. 14CR2153 & 15CR232
    Honorable Linda Billings-Vela, Judge
    The People of the State of Colorado,
    Plaintiff-Appellee,
    v.
    Joshua Christian Bott,
    Defendant-Appellant.
    JUDGMENT AND SENTENCE AFFIRMED IN PART, VACATED IN PART,
    AND CASE REMANDED WITH DIRECTIONS
    Division V
    Opinion by JUDGE HARRIS
    Richman and Tow, JJ., concur
    Announced July 3, 2019
    Philip J. Weiser, Attorney General, William G. Kozeliski, Assistant Attorney
    General, Denver, Colorado, for Plaintiff-Appellee
    Megan A. Ring, Colorado State Public Defender, Mark Evans, Deputy State
    Public Defender, Denver, Colorado, for Defendant-Appellant
    ¶1    In 2004, when defendant, Joshua Christian Bott, allegedly
    molested his infant daughter, Colorado firmly adhered to the
    “corpus delicti” rule. That rule requires the prosecution to present
    evidence other than the defendant’s confession to prove that the
    crime occurred. By the time of Bott’s trial in 2015, the Colorado
    Supreme Court had abandoned the corpus delicti rule and replaced
    it with a “trustworthiness” standard. See People v. LaRosa, 
    2013 CO 2
    , ¶¶ 31, 38.
    ¶2    At trial, the prosecution introduced Bott’s written confession,
    prepared as part of his sex offender treatment, as well as hundreds
    of images of child pornography recovered from his computer ten
    years after the alleged molestation. The jury convicted Bott of five
    counts of sexual assault on a child by one in a position of trust,
    twelve counts of sexual exploitation of a child related to his
    possession of child pornography, and three additional counts of
    sexual exploitation related to his distribution of child pornography.
    ¶3    On appeal, Bott argues that the supreme court’s decision
    abandoning the corpus delicti rule in favor of a trustworthiness
    standard did not apply retroactively; therefore, the prosecution had
    to present corroborating evidence that the crime occurred and
    1
    because it did not the evidence was insufficient to support his
    sexual assault convictions. He also argues that, under the sexual
    exploitation of a child statute, his single act of possession of
    hundreds of images of child pornography constitutes one crime of
    possession of more than twenty items of sexually exploitative
    material.
    ¶4    We agree with both arguments. Accordingly, we vacate Bott’s
    five convictions for sexual assault on a child and eleven of his
    convictions for sexual exploitation of a child, and we remand for
    resentencing.1
    I.   Background
    ¶5    In 2010, Bott was in sex offender treatment, a condition of the
    probationary sentence imposed after he pleaded guilty to an
    unrelated class 6 felony sex offense. At trial, Bott’s therapist
    testified that, to remain in treatment, the client must progress to
    the satisfaction of the treatment staff. The therapist did not believe
    that Bott was making sufficient progress in the disclosure phase of
    treatment because he had not admitted to sexually abusing his
    1Bott does not appeal his conviction for the three counts of sexual
    exploitation related to distribution of child pornography.
    2
    daughter — to the contrary, during the several years he had been in
    treatment, Bott was “adamant that he did not sexually assault [his
    daughter].”
    ¶6    In May 2010, the therapist notified Bott in writing that he was
    not progressing and that if he failed to complete the disclosure
    phase by October, he would be terminated from treatment and
    referred to the court “for consequences,” which might include
    incarceration. By July, Bott had completed a questionnaire in
    which he admitted that during the six months after his daughter
    was born in June 2004, he regularly “sexually abused [her] while
    changing her diaper,” by “rubb[ing] [her] vulva and buttocks with
    [his] fingers.” The therapist reported the admission to the police,
    but they declined to file charges.
    ¶7    In 2014, after Bott had been terminated from treatment,
    incarcerated, and released from parole, police received information
    that Bott’s computer was linked to the distribution of child
    pornography. During a search of Bott’s home, police recovered a
    memory card containing nearly 300 images of child pornography as
    well as the questionnaire containing his written confession to
    having sexually abused his infant daughter ten years earlier.
    3
    ¶8       The People charged Bott with five counts of sexual assault on
    a child, twelve counts of sexual exploitation of a child (each count
    correlating to possession of more than twenty images of child
    pornography), and another three counts of sexual exploitation of a
    child (distribution of child pornography).
    ¶9       At various pretrial hearings, the prosecutor acknowledged that
    the case was “based off of the treatment notes,” and that “the
    information” it had about the case came from “Mr. Bott’s
    statements.” The prosecutor candidly admitted that “there is very
    little evidence and very little proof in this case.”
    ¶ 10     At trial, the prosecutor introduced (1) Bott’s written
    confession; (2) the therapist’s testimony concerning the
    circumstances surrounding the confession; (3) the ex-wife’s
    testimony that Bott regularly changed their daughter’s diaper
    during the relevant period; and (4) the images of child pornography
    found on Bott’s computer in 2014. The jury convicted Bott of all
    charges.
    II.   Sufficiency of the Evidence — Sexual Assault on a Child
    ¶ 11     Bott contends that the evidence was insufficient to support his
    convictions for sexual assault on a child by one in a position of
    4
    trust because, under the corpus delicti rule, he could not be
    convicted based on his confession alone and the prosecution did
    not present corroborating evidence that the crime occurred.
    ¶ 12   Bott’s challenge to the sufficiency of the evidence raises two
    questions. First, did the corpus delicti rule apply at Bott’s trial or
    did the supreme court’s decision abandoning the rule apply
    retroactively? And second, if the corpus delicti rule did apply, did
    the prosecution present any corroborating evidence that the crime
    occurred such that the evidence as a whole was sufficient to sustain
    the convictions?
    A.    Preservation and Standard of Review
    ¶ 13   Before we can address the merits of Bott’s sufficiency claim,
    we must determine whether, as the People contend, Bott has waived
    appellate review of his claim, under either the doctrine of invited
    error or general waiver principles.
    1.    Relevant Facts
    ¶ 14   The corpus delicti rule was first mentioned at the pretrial
    conference. The prosecutor explained that she had “two pieces of
    evidence that show that Mr. Bott was around [his daughter]. One,
    his admission . . . [a]nd two, [the ex-wife’s] testimony.” She
    5
    intended to introduce photographs to “show and prove that Mr. Bott
    was around [his daughter] at that age” and that “he did touch
    [her].” The photographs were necessary, she argued, even though
    “corpus delicti is dead in the state of Colorado now, so to speak.”
    Neither defense counsel nor the court responded to the prosecutor’s
    pronouncement.
    ¶ 15   At the close of the prosecution’s case, Bott moved for a
    judgment of acquittal based on LaRosa. Defense counsel noted that
    in LaRosa, the supreme court had abandoned the corpus delicti
    rule and replaced it with the trustworthiness standard. She
    explained that LaRosa involved similar facts but that the court had
    not applied the trustworthiness standard to the facts in that case
    because “there was an ex post facto issue with that specific
    defendant.” Counsel then argued that the prosecution had failed to
    demonstrate that Bott’s confession was trustworthy under LaRosa’s
    new standard. The prosecutor reiterated that LaRosa “did away
    with the corpus delicti rule.” She argued that the prosecution had
    established the trustworthiness of the confession through the
    ex-wife’s testimony that Bott changed the daughter’s diaper and the
    6
    introduction of the child pornography, which showed that Bott had
    a sexual interest in young children.
    ¶ 16   The trial court denied the motion for a judgment of acquittal.
    It acknowledged that the supreme court “didn’t apply their decision
    [in LaRosa] retroactively”; nonetheless, the court determined that
    the trustworthiness standard applied in this case and that the
    standard was satisfied by evidence of Bott’s opportunity to commit
    the crime and of his sexual interests.
    2.    Invited Error, Waiver, and Forfeiture
    ¶ 17   The People say that by failing to argue the applicability of the
    corpus delicti rule, and instead focusing exclusively on the
    trustworthiness standard, Bott is precluded from raising his
    sufficiency of the evidence claim on appeal. We are not persuaded.
    ¶ 18   The doctrine of invited error prevents a party from complaining
    on appeal of an error that he injected into the case. People v.
    Rediger, 
    2018 CO 32
    , ¶ 34. Invited error is a narrow doctrine; it
    applies to errors in trial strategy but not to errors based on
    inadvertence or oversight. Id.; see also People v. Stewart, 
    55 P.3d 107
    , 119 (Colo. 2002).
    7
    ¶ 19   As an initial matter, the prosecutor, not defense counsel, first
    injected the error in this case. Even so, the People contend, Bott
    “urged” the trial court to apply the trustworthiness standard and
    that, under the invited error doctrine, he may not do “an
    about-face” on appeal and argue that the corpus delicti standard
    applies. That argument would have some force if Bott had “urged”
    the trial court to apply one standard over the other as a matter of
    trial strategy. But it seems clear to us that counsel construed
    LaRosa to preclude reliance on the corpus delicti rule and to require
    application of the trustworthiness standard. In any event, the trial
    court was not led astray by counsel’s interpretation of LaRosa; it
    independently considered the case, even referring to the language
    concerning retroactivity.
    ¶ 20   The People’s waiver argument fares no better. Waiver is the
    “intentional relinquishment of a known right or privilege.” Rediger,
    ¶ 39 (quoting Dep’t of Health v. Donahue, 
    690 P.2d 243
    , 247 (Colo.
    1984)). Thus, as a prerequisite to waiver, we must find that the
    defendant (or his counsel) knew of the right before relinquishing it.
    The record suggests the opposite: that “everyone involved,” see
    People v. Tee, 
    2018 COA 84
    , ¶ 31, misunderstood the import or
    8
    scope of LaRosa’s retroactivity analysis. There is simply no
    evidence that Bott “intended to relinquish his right to be tried” in
    accordance with due process. Rediger, ¶ 42. Given that we must
    “indulge every reasonable presumption against waiver,” 
    id. at ¶
    39
    (quoting People v. Curtis, 
    681 P.2d 504
    , 514 (Colo. 1984)), we
    conclude that, under these circumstances, counsel did not
    knowingly and intentionally waive any claim that the corpus delicti
    rule applied. See People v. Ramirez, 
    2019 COA 16
    , ¶ 18 (where
    counsel’s failure to address the error was “patently attributable to
    neglect,” the instructional error was not waived).
    ¶ 21   We are not persuaded otherwise by the People’s citation to
    People v. Murray, 
    2018 COA 102
    , and People v. Kessler, 
    2018 COA 60
    . In those cases, the divisions assumed that the defendants
    knew of the error and so focused on the intentionality of the
    defendants’ acquiescence. Murray, ¶¶ 43-44; Kessler, ¶¶ 37-38.
    Tee is distinguishable on other grounds. There, the division
    thoroughly analyzed the “knowing” component of waiver and
    concluded that, while “everyone involved” in the case had correctly
    assessed the relevant issue and the proper remedy, the defendant
    9
    had failed to seek any relief in the trial court and thus his claim
    was waived. 
    Id. at ¶¶
    31, 33, 35.
    ¶ 22   Still, when the defendant fails to timely assert a right, as Bott
    did here, we ordinarily consider the claim forfeited and review the
    claim for plain error. Rediger, ¶ 40. Bott’s claim involves the
    sufficiency of the evidence to support the sexual assault
    convictions, however, and we review sufficiency claims de novo.
    McCoy v. People, 
    2019 CO 44
    , ¶ 34.
    ¶ 23   Thus, we review de novo whether the prosecution introduced
    sufficient evidence under the applicable standard to support the
    sexual assault convictions. If the evidence is insufficient, we must
    vacate the convictions without conducting a plain error analysis.
    
    Id. at ¶
    27.
    B.    Legal Background
    ¶ 24   Almost all courts adhere to a corroboration requirement that
    prevents a defendant from being convicted of a crime based only on
    his uncorroborated confession. LaRosa, ¶ 13. One such
    corroboration requirement, known as the corpus delicti rule,
    requires the prosecution to present independent evidence that the
    crime occurred. 
    Id. at ¶¶
    14-15. The other widely applied
    10
    corroboration requirement, known as the trustworthiness standard,
    requires the prosecution to present independent evidence that the
    confession itself is trustworthy. 
    Id. at ¶
    21.
    ¶ 25   From 1872 until 2013, Colorado adhered to the corpus delicti
    rule. 
    Id. at ¶
    16. Under that rule, the prosecution must introduce
    some corroborating evidence to establish (1) an injury that is
    “penally proscribed — e.g., in an unlawful homicide, a person killed;
    in larceny, certain property missing,” and (2) “unlawfulness of some
    person’s conduct in causing that injury.” People v. Smith, 
    182 Colo. 31
    , 33, 
    510 P.2d 893
    , 894 (1973), abrogated by LaRosa, ¶ 41; see
    also State v. Mauchley, 
    67 P.3d 477
    , 482 (Utah 2003) (corpus delicti
    rule requires the prosecution to present corroborating evidence that
    the injury or harm specified in the crime occurred and this injury or
    harm was caused by someone’s criminal activity). The corpus
    delicti rule was adopted in part to “reduce the possibility that a
    person is convicted based on a confession to a crime that never
    happened.” LaRosa, ¶ 17.
    ¶ 26   But the corpus delicti rule has some obvious disadvantages,
    including its potential to obstruct justice in cases where, as in
    LaRosa and as here, “the victim is too young to testify and no
    11
    tangible injury results from the alleged criminal act.” 
    Id. at ¶
    27.
    So in 2013, after carefully considering the benefits and costs of the
    rule as well as the important role of stare decisis in our legal
    system, the supreme court decided to abandon the corpus delicti
    rule and to adopt the trustworthiness standard. 
    Id. at ¶¶
    31, 38.
    The trustworthiness standard “requires corroboration of the
    confession itself rather than corroboration that a crime was
    committed.” 
    Mauchley, 67 P.3d at 488
    .
    ¶ 27   Having adopted a new corroboration rule, the court turned to
    the issue of retroactivity. As a general matter, judicial decisions
    apply retroactively. See Martin Marietta Corp. v. Lorenz, 
    823 P.2d 100
    , 111 (Colo. 1992). But when a decision alters a common law
    doctrine of criminal law, and the alteration is unexpected and
    indefensible by reference to the law in effect at the time of the
    conduct at issue, retroactive application of the decision violates a
    defendant’s rights under the Due Process Clause. LaRosa, ¶ 44;
    see also Rogers v. Tennessee, 
    532 U.S. 451
    , 462 (2001). Thus, the
    “key test in determining whether the due process clause precludes
    the retrospective application of a judicial decision in a criminal case
    is whether the decision was sufficiently foreseeable so that the
    12
    defendant had fair warning.” LaRosa, ¶ 44 (quoting Aue v. Diesslin,
    
    798 P.2d 436
    , 441 (Colo. 1990)).2 The court concluded that
    because Colorado had consistently applied the corpus delicti rule
    for more than a century, abandonment of the rule was not
    foreseeable, and therefore the defendant did not have fair warning.
    
    Id. at ¶
    46. Under those circumstances, applying the
    trustworthiness standard to the defendant would violate his due
    process rights. 
    Id. C. Analysis
    1.    Does LaRosa’s New Trustworthiness Standard Apply
    Retroactively to Bott?
    ¶ 28   The People acknowledge that the LaRosa court declined to
    apply the trustworthiness standard retroactively. But they argue
    that the court’s retroactivity ruling prohibits application of the new
    trustworthiness standard only to trials, not to conduct, that
    occurred before the change in the rule.
    2“Retroactive” and “retrospective” can have different meanings
    when referring to application of civil statutes, but frequently courts
    use the terms interchangeably, see Ficarra v. Dep’t of Regulatory
    Agencies, 
    849 P.2d 6
    , 11 (Colo. 1993), as the supreme court
    appeared to do in People v. LaRosa, 
    2013 CO 2
    , ¶¶ 44, 45.
    13
    ¶ 29   In determining whether a statute or rule operates
    “retrospectively” so as to raise ex post facto or due process
    concerns, the court must ask whether the new statute or rule
    attaches new legal consequences to events completed before its
    enactment. Landgraf v. USI Film Prods., 
    511 U.S. 244
    , 269 (1994).
    The answer to that question depends on “the nature and extent of
    the change in the law and the degree of connection between the
    operation of the new rule and a relevant past event.” 
    Id. at 270.
    As
    we understand the People’s argument, they contend that because
    the replacement of the corpus delicti rule with the trustworthiness
    standard constituted a mere procedural change, operation of the
    new rule had no connection to the defendant’s commission of the
    underlying criminal conduct but only to his conduct at trial.
    ¶ 30   To be sure, not all judicial rule changes result in due process
    violations. See Proctor v. Cockrell, 
    283 F.3d 726
    , 735 (5th Cir.
    2002). “Rather only those ‘unexpected and indefensible’ judicial
    changes of the type with which the Ex Post Facto Clause is
    concerned violate the Due Process Clause.” Id.; see also 
    Rogers, 532 U.S. at 456
    (“[L]imitations on ex post facto judicial
    decisionmaking are inherent in the notion of due process.”).
    14
    ¶ 31   But what are the types of rules with which the Ex Post Facto
    Clause and, by extension, the Due Process Clause, are concerned?
    In Calder v. Bull, 3 Dall. 386, 390 (1798) (seriatim opinion), Justice
    Samuel Chase identified them as follows:
    1st. Every law that makes an action done
    before the passing of the law, and which was
    innocent when done, criminal; and punishes
    such action. 2nd. Every law that aggravates a
    crime, or makes it greater than it was, when
    committed. 3rd. Every law that changes the
    punishment, and inflicts a greater
    punishment, than the law annexed to the
    crime, when committed. 4th. Every law that
    alters the legal rules of evidence, and receives
    less, or different, testimony, than the law
    required at the time of the commission of the
    offence, in order to convict the offender.
    ¶ 32   The People are right that the Ex Post Facto Clause is not
    concerned with mere procedural rules, which necessarily fall
    outside Calder’s four categories. See Collins v. Youngblood, 
    497 U.S. 37
    , 46 (1990); see also State v. Jess, 
    184 P.3d 133
    , 160 (Haw.
    2008) (“For a judicial decision to implicate due process concerns,
    the change wrought upon the defendant’s interests must be
    substantive, as opposed to procedural . . . .”).
    15
    ¶ 33   But contrary to the People’s assertion, the corpus delicti rule
    is not merely procedural.3 The LaRosa court itself rejected that
    argument, observing that it had always treated the corpus delicti
    rule as a “‘substantive rule of law relating to the quantum of proof
    necessary to sustain a conviction’ and not a rule affecting
    admissibility.” LaRosa, ¶ 42 (quoting People v. Robson, 
    80 P.3d 912
    , 913-14 (Colo. App. 2003)).
    ¶ 34   To the extent we needed confirmation of the proper
    characterization of a corroboration rule, Carmell v. Texas, 
    529 U.S. 513
    (2000), provides it. The defendant in that case sexually
    assaulted his stepdaughter when the law required corroboration of
    a victim’s testimony to convict the offender unless the victim had
    reported the crime within six months or was younger than fourteen.
    
    Id. at 516-17.
    But by the time of trial, the statute had been
    amended to permit conviction of certain offenses on the victim’s
    testimony alone. 
    Id. at 516-18.
    The question was whether the
    amendment could be applied at trial for offenses committed before
    3 At oral argument, the People appeared to concede that the corpus
    delicti rule is substantive, not procedural, but did not acknowledge
    the legal consequence of the distinction.
    16
    its enactment without violating the defendant’s constitutional
    rights. 
    Id. at 516.
    The answer turned on whether the rule fell
    within one of the Calder categories. The Supreme Court concluded
    that it did:
    [The amended corroboration rule] is
    unquestionably a law ‘that alters the legal
    rules of evidence, and receives less, or
    different, testimony, than the law required at
    the time of the commission of the offence, in
    order to convict the offender.’ Under the law in
    effect at the time the acts were committed, the
    prosecution’s case was legally insufficient and
    petitioner was entitled to a judgment of
    acquittal, unless the State could produce both
    the victim’s testimony and corroborative
    evidence. The amended law, however, changed
    the quantum of evidence necessary to sustain
    a conviction; under the new law, petitioner
    could be (and was) convicted on the victim’s
    testimony alone, without any corroborating
    evidence. Under any commonsense
    understanding of Calder’s fourth category, [the
    amended rule] plainly fits.
    
    Id. at 530.
    ¶ 35   Like the corroboration law at issue in Carmell, the corpus
    delicti rule is a sufficiency of the evidence rule. “As such, it does
    not merely ‘regulate the mode in which the facts constituting guilt
    may be placed before the jury,’” but instead “governs the sufficiency
    of those facts for meeting the burden of proof.” 
    Id. at 545
    17
    (alterations omitted) (citation omitted). And, as our supreme court
    recognized, prior to LaRosa, a person would not have had fair
    warning of a change in the rule. LaRosa, ¶ 46. Thus, both
    elements of a due process violation are present.
    ¶ 36   The People counter that Bott could not possibly have relied on
    the corpus delicti rule in ordering his conduct, beyond devising
    litigation strategy, and thus he was only entitled to fair warning of
    the rule change before his trial. According to the People, Bott could
    not have known at the time he allegedly abused his daughter or at
    the time he confessed that no corroborating evidence would later
    emerge. But as the People conceded at oral argument, if Bott had
    falsely confessed to appease his treatment provider, he surely would
    have known that there was no risk that police would ever uncover
    corroborating evidence.
    ¶ 37   In any event, the Supreme Court considered and rejected that
    argument in Carmell, 
    see 529 U.S. at 534
    , because the Court’s
    “concern with fair notice goes beyond actual reliance,” United States
    v. Lata, 
    415 F.3d 107
    , 111 (1st Cir. 2005). As the Court explained,
    even apart from any claim of reliance, “[t]here is plainly a
    fundamental fairness interest” in “having the government abide by
    18
    the rules of law it establishes to govern the circumstances under
    which it can deprive a person of his or her liberty or life.” 
    Carmell, 529 U.S. at 533
    .
    ¶ 38   Finally, we have no disagreement with the People’s assertion
    that “criminal conduct is not excused merely on the basis that the
    defendant did not believe the state would be able to prove the crime
    in court.” But we do not find this assertion helpful to our
    retroactivity analysis. It seems obvious to us that the Supreme
    Court was not “excusing” the defendant’s conduct in Carmell when
    it determined that retroactive application of the state’s new
    corroboration law would violate his constitutional rights.
    ¶ 39   For these reasons, we conclude, if it was not obvious from
    LaRosa itself, that the trustworthiness standard cannot be applied
    retroactively to defendants, like Bott, who committed the alleged
    offense before the court adopted the new standard.
    2.    Did the Prosecution Present Corroborating Evidence
    Establishing That the Crime Was Committed?
    ¶ 40   Under the corpus delicti rule, the prosecution had to present
    corroborative evidence that a sexual assault occurred. LaRosa,
    ¶ 14. While the corroborative evidence “need only be slight,” 
    id. at 19
      ¶ 15 (quoting Neighbors v. People, 
    168 Colo. 319
    , 322, 
    451 P.2d 264
    , 265 (1969)), “we must tread carefully when evaluating the
    probative weight of evidence that might provide slight
    corroboration” because some evidence might indicate guilt without
    establishing the corpus delicti, Allen v. Commonwealth, 
    752 S.E.2d 856
    , 860 (Va. 2014).
    ¶ 41   We review de novo whether the evidence is sufficient to
    establish the corpus delicti of the crime. See State v. Pineda, 
    992 P.2d 525
    , 532 (Wash. Ct. App. 2000).
    ¶ 42   According to the People, the prosecution satisfied its burden
    by introducing the following evidence to establish the corpus delicti
    of a sexual assault: (1) the ex-wife’s testimony that Bott regularly
    changed the daughter’s diaper in 2004 and (2) the numerous
    images of child pornography downloaded by Bott in 2014.
    ¶ 43   That Bott changed his daughter’s diaper does not establish
    that a crime occurred. See 
    Smith, 182 Colo. at 33
    , 510 P.2d at 894
    (under the corpus delicti rule, evidence must establish an injury
    proscribed by a criminal law and unlawfulness of a person’s
    conduct in causing the injury). The ex-wife did not say that she
    had observed any inappropriate touching or other unusual act by
    20
    Bott during the diaper changes. (She did not, for example,
    corroborate Bott’s statement that he had repeatedly rubbed the
    baby’s vulva with his fingers.) Cf. State v. McMeans, 
    201 S.W.3d 117
    , 121 (Mo. Ct. App. 2006) (the defendant’s manner of touching
    the child during a diaper change was evidence that she had
    committed sexual abuse of the child). Nor did she testify that her
    daughter exhibited any physical or emotional manifestation of
    abuse. See 
    id. at 119
    (noting that witnesses testified that after the
    defendant changed the child’s diaper, the child’s vaginal area “was
    very red” and the child did not want anyone to change her and
    “would fuss and fidget”). Rather, the ex-wife testified to facts that
    are “just as consistent with non-commission of the offense as . . .
    with its commission.” 
    Allen, 752 S.E.2d at 860
    (quoting Phillips v.
    Commonwealth, 
    116 S.E.2d 282
    , 285 (Va. 1960)). Under those
    circumstances, the “slight corroboration” necessary to establish the
    corpus delicti “does not exist.” 
    Id. ¶ 44
      At most, the ex-wife’s testimony established Bott’s opportunity
    to commit a crime. But “the mere opportunity to commit a criminal
    act, standing alone, provides no proof” of the corpus delicti. State v.
    Ray, 
    926 P.2d 904
    , 907 (Wash. 1996).
    21
    ¶ 45   That leaves only the images of child pornography. In their
    brief, the People repeatedly argue that the child pornography
    “corroborated the defendant’s confession.” That may be true, and if
    we were applying the trustworthiness standard, the outcome might
    be different. But as we have explained, the corpus delicti rule
    requires corroboration that a crime occurred, not corroboration of
    the confession itself.
    ¶ 46   We do not see how the recovery of child pornography in 2014
    supplies the necessary corroboration that Bott’s daughter was
    sexually assaulted ten years earlier. According to the People, Bott’s
    possession of the images necessarily transforms his earlier,
    otherwise innocent conduct into sexual assault, thus establishing
    that the crime of sexual assault on a child occurred and that the
    daughter was the victim. But that is true only if every person who
    has ever had (or will have in the future) an interest in child
    pornography is also a child molester and, more specifically, a
    molester of his own children. The prosecution did not present any
    evidence to support that proposition, nor do the People cite any
    supporting authority in their briefing.
    22
    ¶ 47   At least two courts have rejected the proposition. In State v.
    Delp, 
    178 P.3d 259
    (Or. Ct. App. 2008), the defendant solicited a
    purported fourteen-year-old girl (actually an FBI agent) for sex.
    After tracing the computer to the defendant, agents obtained a
    search warrant for his home and recovered a disk containing child
    pornography. 
    Id. at 260-61.
    The defendant later confessed to
    performing sexual acts on his girlfriend’s one-year-old child. 
    Id. ¶ 48
      On appeal from his convictions for sodomy and sexual abuse,
    the defendant argued that the prosecution had failed to satisfy its
    burden under the state’s corpus delicti rule because it had not
    introduced any corroborating evidence that the crimes had been
    committed. 
    Id. at 265.
    The state pointed to evidence that the
    defendant had access to the child, child pornography was recovered
    from his computer, he engaged in sexually explicit online
    conversations, and a towel discovered in the girlfriend’s home
    corroborated a detail in the confession. 
    Id. ¶ 49
      The appellate court reversed the convictions, concluding that
    none of the evidence offered by the state “tends to demonstrate or
    gives rise to an inference that the alleged victim was the subject of”
    the charged offenses. 
    Id. at 266.
    As the court explained,
    23
    no reasonable juror could infer from
    defendant’s possession of child pornography,
    his sexual interest in children, the existence of
    a recently laundered pink towel, and
    defendant’s opportunity to commit the crimes,
    that the child was the victim of sodomy or
    sexual abuse, whether those facts are
    considered separately or together.
    
    Id. ¶ 50
       State v. Mesot, No. M200602599-CCA-R3-CD, 
    2008 WL 732151
    (Tenn. Crim. App. Mar. 14, 2008), is also instructive. In
    that case, the defendant’s wife discovered child pornography on the
    couple’s computer and called the police. 
    Id. at *1.
    When police
    arrived, the defendant consented to a search of his computer but
    informed the officers that he had “wiped” all the child pornography
    from the hard drive. Nonetheless, a search uncovered five images
    in a temporary file. 
    Id. Defendant then
    confessed in writing to
    having sexually abused his nineteen-month-old daughter. 
    Id. at *2.
    He later admitted to his wife that he had engaged in sexual conduct
    with the child for six months. 
    Id. ¶ 51
       The defendant appealed his convictions for child rape,
    contending that the state had failed to present evidence other than
    his confession to establish the corpus delicti of the crimes. 
    Id. at 24
      *3. The state argued that the fact of the crime was corroborated by
    the defendant’s expressed interest in incest and child pornography
    and the images of child pornography found on his computer. While
    the court acknowledged that the corroboration of the corpus delicti
    may be established solely by circumstantial evidence, it concluded
    that the state had nonetheless failed to present sufficient
    corroborating evidence of the crimes:
    The court’s finding that the Appellant’s
    “interest in child pornography” independently
    corroborates the rape of the victim is
    misplaced. We know of no authority which
    holds that all persons who have an interest in
    child pornography are also child rapists.
    Thus, the finding that the Appellant had an
    interest in child pornography neither “tends to
    establish” nor compels the inference that the
    Appellant committed the crime of rape of a
    child.
    
    Id. at *4.
    ¶ 52    We acknowledge that under section 16-10-301, C.R.S. 2018,
    evidence of the defendant’s other “relevant” acts is generally
    admissible in prosecutions of sexual offenses, including for the
    purpose of proving the corpus delicti of a crime. But it does not
    follow that any evidence offered pursuant to section 16-10-301 will
    always be sufficient to prove the corpus delicti of a sexual offense.
    25
    Conversely, we do not mean to suggest that evidence offered under
    the statute could never corroborate the corpus delicti of a crime.
    ¶ 53   We conclude only that, on this record, the evidence of Bott’s
    possession of child pornography, ten years after the alleged offense,
    even when considered together with the fact that he changed his
    daughter’s diaper, was insufficient to prove the corpus delicti of
    sexual assault on a child.
    ¶ 54   Accordingly, the evidence was insufficient to sustain Bott’s
    convictions for sexual assault on a child by one in a position of
    trust. The convictions must therefore be vacated. See LaRosa,
    ¶¶ 47-48.
    III.   Double Jeopardy
    ¶ 55   During the search of Bott’s home, police recovered a single
    memory card containing 294 images of child pornography. The
    sexual exploitation of a child statute makes the possession of child
    pornography a class 5 felony, unless the person possesses more
    than twenty images, in which case possession of the materials is a
    class 4 felony. § 18-6-403(5)(b), C.R.S. 2018.
    ¶ 56   The prosecution charged Bott with twelve counts of possession
    of more than twenty images of child pornography by dividing the
    26
    images from the memory card into separate counts. Bott contends
    that the sexual exploitation of child statute treats as a single
    offense the possession of more than twenty images of child
    pornography. Thus, he argues, his twelve convictions and
    sentences for possessing 294 images violates his rights under the
    Double Jeopardy Clause. We agree.
    A.   Standard of Review
    ¶ 57   We review de novo a claim that multiplicitous convictions
    violate a defendant’s constitutional protection against double
    jeopardy. People v. Allman, 
    2017 COA 108
    , ¶ 12 (cert. granted on
    other grounds Mar. 5, 2018).
    B.    Analysis
    ¶ 58   Multiplicity is the charging of the same offense in several
    counts, culminating in multiple punishments. People v. McMinn,
    
    2013 COA 94
    , ¶ 19. Multiplicitous convictions are prohibited
    because they violate the constitutional prohibition against double
    jeopardy. 
    Id. ¶ 59
      If a defendant is prosecuted for distinct offenses under the
    same statute, as Bott was, we ascertain whether the defendant’s
    double jeopardy rights were violated by determining (1) whether the
    27
    unit of prosecution prescribed by the legislature permits the
    charging of multiple offenses and (2) whether the evidence in
    support of each offense justified the charging of multiple offenses
    and the imposition of multiple sentences. People v. Harris, 
    2016 COA 159
    , ¶ 40.
    ¶ 60   “Unit of prosecution” refers to the extent to which the relevant
    statute permits the prosecution to separate the defendant’s conduct
    into discrete acts for purposes of prosecuting multiple offenses.
    Quintano v. People, 
    105 P.3d 585
    , 590 (Colo. 2005).
    ¶ 61   To determine the unit of prosecution, we look to the statute.
    People v. Arzabala, 
    2012 COA 99
    , ¶ 23. In construing a statute, we
    must discern and effectuate the intent of the legislature based
    primarily on the plain and ordinary meaning of the statutory
    language. 
    Id. ¶ 62
      Bott was charged with sexual exploitation of a child under
    section 18-6-403(3)(b.5) and (5). Those statutory provisions provide
    as follows:
    (3) A person commits sexual exploitation of a
    child if, for any purpose, he or she knowingly:
    ...
    28
    (b.5) Possesses or controls any sexually
    exploitative material for any purpose, except
    that this subsection (3)(b.5) does not apply to
    [enumerated persons].
    ....
    (5)(b) Sexual exploitation of a child by
    possession of sexually exploitative material . . .
    is a class 5 felony; except that said offense is a
    class 4 felony if:
    (I) It is a second or subsequent offense; or
    (II) The possession is of . . . more than twenty
    different items qualifying as sexually
    exploitative material.
    
    Id. ¶ 63
       Under the plain and unambiguous language of the statute, the
    unit of prosecution is an act of possession, not an individual image.
    The statute refers to the singular “possession” of sexually
    exploitative material and instructs that, if “[t]he possession” is of
    more than twenty images, the defendant may be punished more
    severely. § 18-6-403(5)(b)(II); see State v. Liberty, 
    370 S.W.3d 537
    ,
    552-53 (Mo. 2012) (construing substantially similar statute to mean
    that “possession of 20 or more proscribed images constitutes a
    single unit of prosecution”); see also United States v. Polouizzi, 
    564 F.3d 142
    , 154-55 (2d Cir. 2009) (The unit of prosecution under a
    29
    statute prohibiting the possession of “1 or more books, magazines
    . . . or other matter” containing child pornography is the act of
    possession, not “each ‘matter’” containing an image.).
    ¶ 64   Citing People v. Renander, 
    151 P.3d 657
    (Colo. App. 2006), the
    People contend that a division of this court “faced the precise
    question presented in this case and held that each image of
    exploitative material may be charged as a separate offense.” But
    Renander interpreted an earlier version of the statute that did not
    include the critical language contained in the current iteration of
    subsection (5)(b). And when a statute is amended, it is presumed
    that the legislature intended to change the law. Robles v. People,
    
    811 P.2d 804
    , 806 (Colo. 1991).
    ¶ 65   The Renander division analyzed the 2005 version of the
    statute, which contained the following language:
    The sexual exploitation of a child is a class 3
    felony; except that sexual exploitation of a
    child by possession of sexually exploitative
    material pursuant to paragraph (b.5) of
    subsection (3) of this section is a class 1
    misdemeanor, but a second or subsequent
    offense by such possession is a class 4 felony.
    § 18-6-403(5), C.R.S. 2005.
    30
    ¶ 66   Because the statute did not clearly define the allowable unit of
    prosecution, the division looked to the term “any sexually
    exploitative material” in subsection (3)(b.5) and concluded that each
    discrete item of sexually exploitative material constituted an
    allowable unit of 
    prosecution. 151 P.3d at 661-62
    . The division’s
    analysis does not apply to the new version of the statute, however,
    which clearly delineates the unit of prosecution as each act of
    possession.
    ¶ 67   The People contend that construing the statute in this way will
    lead to absurd results because a person who possesses twenty-one
    images will face the same consequences as a person who possesses
    21,000 images. Even assuming that our construction of the statute
    gives rise to “undesirable results,” the “legislature must determine
    the remedy. Courts may not rewrite statutes to improve them.”
    People v. Butler, 
    2017 COA 117
    , ¶ 35 (quoting Dep’t of Transp. v.
    City of Idaho Springs, 
    192 P.3d 490
    , 494 (Colo. App. 2008)).
    ¶ 68   And we disagree that our construction of the statute would
    impermissibly constrain prosecutors’ discretionary charging
    decisions. Prosecutors may continue to make charging decisions at
    31
    their discretion, limited only by the statutory unit of prosecution
    and the prohibition against double jeopardy.
    ¶ 69   Under the applicable unit of prosecution, Bott’s possession of
    the memory card containing 294 images subjected him to only one
    conviction under section 18-6-403(3)(b.5), C.R.S. 2018. The
    multiplicitous convictions therefore violated Bott’s rights under the
    Double Jeopardy Clause. Accordingly, we vacate eleven of Bott’s
    convictions and remand for resentencing. See People v. Johnson,
    
    2016 COA 15
    , ¶ 25 (“In multicount cases, judges typically craft
    sentences on the various counts as part of an overall sentencing
    scheme, but when a count is vacated and that scheme unravels,
    they should have the discretion to reevaluate the underlying facts
    and sentences on the remaining counts.”).4
    IV.   Conclusion
    ¶ 70   Bott’s convictions for sexual assault on a child by one in a
    position of trust and eleven of his convictions for sexual exploitation
    of a child (possession of child pornography) are vacated. One
    4 Because we remand for resentencing, we do not address Bott’s
    final contention that the mittimus must be corrected to reflect the
    court’s oral sentence on the sexual exploitation of a child counts.
    32
    conviction of sexual exploitation of a child (possession of child
    pornography) and the three convictions of sexual exploitation of a
    child (distribution of child pornography) are affirmed. The case is
    remanded to the district court for resentencing.
    JUDGE RICHMAN and JUDGE TOW concur.
    33