People v. Mosby CA1/2
CourtCalifornia Court of Appeal
Date FiledNovember 9, 2026
DocketA172506
StatusUnpublished
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Full Opinion
Filed 11/9/26 P. v. Mosby CA1/2
NOT TO BE PUBLISHED IN OFFICIAL REPORTS
California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for
publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or
ordered published for purposes of rule 8.1115.
IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
FIRST APPELLATE DISTRICT
DIVISION TWO
THE PEOPLE,
Plaintiff and Respondent,
A172506
v.
PHILIP CHRISTIAN MOSBY, (Solano County Super. Ct.
No. F23-00099)
Defendant and Appellant.
A jury convicted Philip Christian Mosby of continuous sexual abuse of a
child under the age of 14 (Pen. Code,1 § 288.5, subd. (a)). On appeal, Mosby
argues reversal is required because the trial court erroneously removed a
juror who did not appear for the first full day of deliberations, precluded
Mosby from impeaching the victim’s father with a 17-year-old prior felony
conviction, and admitted expert testimony about Child Sexual Abuse
Accommodation Syndrome (CSAAS). We see no error and affirm.
BACKGROUND
Between the ages of six months and five years old, S.D. attended an in-
home daycare provided by Mosby’s spouse, Linda.2 In December 2022, then
1 Further undesignated statutory references are to the Penal Code.
2 Except for Mosby, we use first names for clarity and privacy; we
intend no disrespect.
1
five-year-old S.D. told her father that Mosby was “ ‘touching [her] in the
bathroom’ ” at daycare and “ ‘giving [her] candy’ ” afterwards. S.D. said
Mosby touched her “ ‘bum-bum’ ” and then put her hand inside “the front
part” of her diaper, saying he “ ‘does it like this’ ” while placing her hand
against her vagina. S.D.’s parents called the police, and S.D. underwent a
forensic interview later that month. A felony complaint charging Mosby with
the continuous sexual abuse of a child was filed in March 2023.
The operative amended information, filed in November 2024, charged
Mosby with continuous sexual abuse of a child under the age of 14 (§ 288.5,
subd. (a); count 1) and, in the alternative, lewd acts with a child under the
age of 14 (§ 288, subd. (a); counts 2, 3 & 4). As to all counts, the amended
information alleged Mosby had substantial sexual conduct with a child under
the age of 14 (§ 1203.066, subd. (a)(8)) and, as aggravating factors, further
alleged that the victim was particularly vulnerable and Mosby took
advantage of a position of trust or confidence (Cal. Rules of Court,
rule 4.421(a)(3), (11)).
A bifurcated jury trial began in December 2024. During jury selection,
the court gave the prospective jurors the trial schedule with an allowance for
deliberations and confirmed that trial would not go past Friday, December
20.3
When testimony began on December 11, seven-year-old S.D. qualified
to testify after demonstrating an understanding of the difference between a
3 During the voir dire process, multiple prospective jurors had
represented vacation and holiday conflicts, and the individual sworn as
Juror No. 11 verbally stated that he would be “out of the country” on
December 22.
2
truth and a lie.4 When asked why she was testifying, S.D. responded,
“because [Mosby] was touching my private parts.” S.D. explained that Mosby
would use his fingers to touch the area where she goes “pee-pee” from, which
she sometimes called her “butt.” When S.D. would go to the bathroom, Mosby
“would just come in” and “touch [her] private parts” while she was “[o]n the
toilet.”
S.D. testified that Mosby would touch her “[e]veryday of the week and
sometimes Saturday” and would touch her for “a couple seconds” each time.
According to S.D., Mosby did not use toilet paper to touch her and was not
helping her go to the bathroom. After he touched S.D., Mosby would say,
“ ‘don’t tell your parents,’ ” and give her “candy,” “Sometimes chocolate,
sometimes little Gummies that are sour.” S.D. explained that she “first told”
her parents about the touching after her father asked if she had eaten any
candy because “Candy makes me crazy” and she was being “extra crazy” one
day.
A video of S.D.’s December 2022 forensic interview was admitted into
evidence and played for the jury. In the video, S.D. stated that at daycare,
Mosby “touches my butt and gives me candy” and circled the vaginal area on
a diagram of a little girl; S.D. said she goes pee “from her butt.” Mosby would
touch her vagina “inside and outside, anywhere” and “in the pink part.” S.D.
explained Mosby would touch her “A[s] much [as] he wants” and that she
“can’t control him. He just controls me.” S.D. said Mosby touches her with
“One or two” fingers and “It doesn’t feel so good.” Afterward, Mosby would
give S.D. candy and tell her “not to tell anybody.”
4 Although Mosby does not challenge the sufficiency of the evidence
supporting his conviction, we discuss the trial testimony to the extent
necessary to address Mosby’s appellate arguments and provide context.
3
S.D.’s father, Michael, and mother, Kristie, then testified about S.D.’s
report of the touching to them.5 Michael testified he typically picked up S.D.
from daycare around 5:00 p.m. Mosby, who lived at the house with Linda,
would be present about half of the days Michael picked up S.D., sometimes
watching television in the living room where S.D. would be playing.
Michael stated he had previously spoken with Linda and Mosby about
not giving candy to S.D. because he believed that candy made S.D.
“hyperactive.” Michael testified that one evening after daycare in December
2022, when S.D. was five years old, Michael told S.D. he knew she had been
eating candy because she was being “super hyperactive”; Michael said S.D.
would not be “in trouble” if she told “the truth” about what she had been
eating. According to Michael, after initially denying that she had eaten any
candy, S.D. admitted to eating two gummy bears that Mosby gave her.
Michael testified that, when picking up S.D. the next day, he asked
Linda if S.D. was getting candy at daycare, which Linda denied, and “it
turned into almost an argument with her.” S.D. tried to interrupt, but
Michael stopped her and, after they left the house, S.D. “grabbed” Michael
and said, “ ‘[Mosby] gave me three pieces of candy.’ ”
When they got home, Michael was “very upset” and testified that when
putting S.D. to bed later that night, he talked to her in a “stern” voice about
not accepting candy from anyone. In response, S.D. told Michael that Mosby
was “giving her candy in the bathroom” and that Mosby “can do whatever he
wants” and “doesn’t have to listen to me.”
5 As is discussed below, prior to trial, two different judges had rejected
Mosby’s request to be able to impeach Michael with a 2007 felony conviction
for the manufacture of methamphetamine.
4
Michael asked why Mosby was in the bathroom, “ ‘is he in there to help
you with anything, like, help clean you, help with anything?’ ” S.D.
answered, “ ‘No. He just shows up.’ ” Michael asked, “why is [Mosby] there,”
and S.D. replied, “ ‘I don’t know. He’s in there giving me candy and he’s
touching me.’ ” S.D. said “ ‘he does it like this’ ” and demonstrated by placing
her hand on her vagina inside her diaper. Michael testified that he brought
in Kristie, and S.D. repeated what she had told Michael.
Kristie then testified and confirmed that after Michael called her in to
talk to S.D., S.D. reported, “ ‘[Mosby] was touching me.’ ” When Kristie asked
S.D. what she meant by touching, S.D. said, “ ‘[Mosby] was tickling my bum-
bum [and] giving me candy.’ ” S.D. demonstrated by holding out her hand
and “put[ting] it near her vagina.” S.D. explained Mosby would touch her
while Linda was “ ‘cooking or doing the dishes’ ” using “either his hand or his
finger” and had been touching her since preschool. S.D.’s parents put S.D. to
bed and discussed what to do; they called the police the following morning.
Mosby’s wife, Linda, testified that she had watched S.D. for four years,
“since she was three months old,” and that Mosby had lived with her “the
whole time.” According to Linda, Mosby would come home from work in the
afternoons and watch TV in the living room. Linda initially denied that
Mosby and S.D. were ever alone together but acknowledged that if she went
to change another child’s diaper, they would be alone.6 Linda testified that
Mosby had “diabetes real bad” and could not “eat candy because of his
diabetes.”
6 The parent of another child who joined the daycare about a year
before S.D. reported the touching also testified to observing Mosby alone with
the children when she picked up her child.
5
Investigating Detective Ashley Wright testified to executing a search
warrant of Mosby’s house in January 2023 and discovering a shopping bag in
the hallway that contained three bags of red and blue gummy candies; no one
in the household claimed ownership at the time.7 A video recording of
Wright’s interview with Mosby after his arrest was also admitted into
evidence and played for the jury. In it, Mosby denied touching “anybody” or
going into the bathroom with any child at his house even for potty training.
Dawn Blacker, Ph.D., then testified as a CSAAS expert called “to
disabuse the jury of common misconceptions relating to child sexual abuse or
assault victims and their behavior.” Blacker testified that she had not
reviewed any materials related to the case and had never met S.D. or Mosby.
Blacker generally explained the “commonly known factors that occur in the
context of child sexual abuse” and clarified that displaying one or more of
those factors “does not mean that the sexual abuse occurred or not.”8
For the defense, four of Mosby’s friends and neighbors testified that
Mosby was honest and they did not believe he had a character for sexual
deviance.
After hearing closing arguments and jury instructions, the jury was
released to begin deliberations at 3:40 p.m. on Wednesday, December 18,
2024. The jury deliberated “for 20 or 25 minutes” that day before recessing at
4:00 p.m.
7 At trial, Linda and Mosby’s adult daughter testified that she had
recently moved back into the house with her parents and the three bags of
candy belonged to her.
8 Prior to the start of Blacker’s testimony, the court held a hearing
concerning its scope pursuant to Evidence Code section 402 and ordered her
testimony be limited to “[s]ecrecy, helplessness, accommodation, [and] delays
[in reporting].” Blacker testified consistently with the court’s order, and
Mosby does not argue differently on appeal.
6
The following morning, Thursday, December 19, Juror No. 11 did not
return to court. The court informed counsel that Juror No. 11 had called that
morning and said, “he had to take his mother to her first chemotherapy
appointment,” which would be “six hours long,” so he “was not going to be
able to be here today.” After further inquiry, Juror No. 11 represented “that
he could be [in court] tomorrow” but would not be available “after tomorrow,”
as stated during jury selection. The court questioned the remaining jurors as
to their availability: Four jurors stated they would be unavailable to
deliberate on Monday, December 23 (in addition to Juror No. 11),9 and at
least two jurors objected to returning on Tuesday, December 24, due to
preplanned vacations and work obligations.10
During related discussions outside the presence of the jury, defense
counsel requested that deliberations resume “tomorrow,” Friday, December
20, so that Juror No. 11 could participate and argued that excusing Juror
No. 11 was “not a mandated necessity” and that jurors “should only be
excused where manifest necessity is apparent.” The court disagreed,
questioning defense counsel’s characterization of the law and stating, “if
manifest [necessity] is actually required I think we have it here because of
the danger we’re going to lose other jurors either tomorrow or next week, and
this Juror, as I indicated, it would have been cause to excuse him in the first
place if he had mentioned this.” “[G]iven the totality of the circumstances”
9 One juror represented their vacation had started “today,” Thursday,
December 19, and another stated theirs started on Friday, December 20, but
both agreed to continue appearing to deliberate that week.
10 The trial court judge also informed counsel that he would not be
available the following week or “the week after next.” He offered, “Another
judge could fill in for me,” but noted, “There could end up being a couple-week
hiatus if I really need to finish presiding over the trial.”
7
including “the holiday period,” the court found “good cause” to discharge
Juror No. 11. Thereafter, the court swore an alternate juror and directed the
recomprised panel of 12 to “set aside and disregard all past deliberations and
begin your deliberations all over again.”
The new jury began their deliberations at 9:55 a.m. on Thursday,
December 19 and returned a unanimous verdict at 2:40 p.m. the same day,
finding Mosby guilty of count one (continuous sexual abuse of a child under
14) and finding true that Mosby had substantial sexual conduct with a child
under 14. The trial court directed verdicts of not guilty as to the remaining
alternatively pleaded charges in counts 2, 3, and 4 (lewd acts with a child
under 14).11
On January 22, 2025, the court sentenced Mosby to a midterm of 12
years in state prison.
Mosby filed a notice of appeal two days later.
DISCUSSION
On appeal, Mosby makes three claims of error. First, Mosby argues the
removal of Juror No. 11 violated Mosby’s statutory and “constitutional rights
to due process and trial by jury.” Second, Mosby asserts precluding the use of
Michael’s 2007 felony conviction to impeach his testimony “not only violated
state law, it deprived [Mosby] of his state and federal constitutional rights to
confrontation and due process right to present a complete defense.” Last,
while acknowledging that “CSAAS testimony is currently admissible under
California law,” Mosby urges us to “reconsider the issue” and claims the trial
court abused its discretion because “the [CSAAS] testimony was unreliable
11 On Friday, December 20, the day after the jury returned its verdict,
the court dismissed, at the People’s request, the alleged aggravating factors,
which had been bifurcated because another juror had failed to appear due to
a death in the family.
8
evidence that . . . deprived [Mosby] of his constitutional due process right to a
fundamentally fair trial.”
I. Removal of Juror No. 11
If “a juror dies or becomes ill, or upon other good cause shown to the
court is found to be unable to perform his or her duty, . . . the court may order
the juror to be discharged and draw the name of an alternate, who shall then
take a place in the jury box.” (§ 1089.) We review a trial court’s decision to
discharge a juror for abuse of discretion and uphold the court’s decision “ ‘if
the record supports the juror’s disqualification as a demonstrable reality.’ ”
(People v. Williams (2015) 61 Cal.4th 1244, 1262.)
“The demonstrable reality test entails a more comprehensive and less
deferential review” than the traditional substantial evidence standard of
review. (People v. Barnwell (2007) 41 Cal.4th 1038, 1052.) “It requires a
showing that the court as trier of fact did rely on evidence that, in light of the
entire record, supports its conclusion” that the juror was unable to perform
his or her duty. (Id. at pp. 1052–1053; see also People v. Williams, supra,
61 Cal.4th at p. 1262.) Thus, “the reviewing court must be confident that the
trial court’s conclusion is manifestly supported by evidence on which the
court actually relied.” (Barnwell, at p. 1053.) We “consider not just the
evidence itself, but also the record of reasons the court provided.” (Ibid.)
Here, the court’s decision to disqualify Juror No. 11 is supported by a
demonstrable reality in the record that Juror No. 11 was unable to perform
his duty. Juror No. 11 was physically unavailable on Thursday, December
19, and would be “out of the country” beginning Sunday, December 22, 2024.
Four jurors were also unavailable to deliberate Monday, December 23, and at
least two of those four would be unavailable the entire week, like Juror
No. 11 (and the trial court judge). Thus, Juror No. 11’s inability to perform
9
his duties on at least December 19 had a demonstrated impact on the
entirety of the jury’s ability to deliberate.
Like the trial court, we are not persuaded by Mosby’s argument that
the better course would have been to wait to resume deliberations until
Friday, December 20, when Juror No. 11 had represented he could return.
First, assuming Juror No. 11 would be present on Friday—a representation
Juror No. 11 had made before his mother’s first day of chemotherapy—and
assuming the two additional jurors whose vacations had already started on
December 19 and 20 did in fact return as they represented they would, then
delaying the resumption of deliberations to Friday, December 20 would have
left the jury that single day to conclude deliberations in the first phase of
trial and for the parties to try and the jury to deliberate in the second phase
concerning the aggravating factors.12
Further, trial courts are directed “to control all proceedings during the
trial . . . with a view to the expeditious and effective ascertainment of the
truth regarding the matters involved” (§ 1044) and have the express
statutory authority to “fix the time and place for deliberations” (§ 1128) along
with a legislative mandate to prioritize sex assault cases (§ 1048, subd. (b)).
As such, delaying deliberations in a manner that would push time constraints
and likely increase the risk of mistrial would have been contrary to the trial
12 Mosby’s appellate briefing fails to acknowledge that he had not
waived his right to a jury trial on the bifurcated aggravating factors that
would require additional time for evidence, argument, instruction, and
renewed deliberations. In fact and as noted above, on Friday, December 20,
the day Mosby wanted to resume deliberations with Juror No. 11, a different
juror was unexpectedly absent because her father-in-law had passed away.
This absence led to the prosecution’s decision to “dismiss [the bifurcated] two
aggravating factors” to Mosby’s benefit since the alternate juror was “not the
same juror . . . who deliberated for the underlying offense.”
10
court’s legislatively prescribed duties; the refusal to do so is certainly within
the scope of this court’s discretion. (See, e.g., Cooper v. Superior Court (1961)
55 Cal.2d 291, 301 [the trial courts has “inherent power . . . to exercise a
reasonable control over all proceedings connected with the litigation before
it”]; People v. Bell (1998) 61 Cal.App.4th 282, 289 [“given the uncertain
timing of [the juror’s] return and the fact so many jurors, alternates, and
witnesses were waiting, the court was well within its discretion to discharge
[the juror] and replace him with an alternate juror”].)
Additionally, we reject Mosby’s comparison of the instant
circumstances to People v. Jones (2020) 50 Cal.App.5th 694, in which, Mosby
asserts, “[the] majority of Division Five of this [appellate district] concluded
that [the] trial court erred by excusing a juror because the record did not
show, as a ‘demonstrable reality,’ that the juror was unable or unwilling to
continue deliberating.” Jones is distinguishable because it involved a
physically present juror who never stated that “she was unwilling or unable
to continue deliberating.” (Id. at pp. 701–702.)13 Here, there is no question of
Juror No. 11’s inability to deliberate; he was physically not present on
December 19 and unable to deliberate due to his mother’s medical
appointment, and he would also be unable to deliberate after December 22.
In sum, we see no abuse of discretion in the court’s actions here.
Regardless, we conclude any presumed error would be harmless.
“ ‘[W]here an alternate juror, approved by defendant in voir dire, is allowed to
deliberate on the jury panel, the defendant bears a heavy burden to
demonstrate that he was somehow harmed thereby.’ ” (People v. Thomas
13 We also note the dissent’s criticism of the majority for “elevat[ing] the
demonstrable evidence standard to a daunting new height.” (People v. Jones,
supra, 50 Cal.App.5th at p. 705 (dis. opn. of Needham, J.).)
11
(1990) 218 Cal.App.3d 1477, 1486; see also People v. Armstrong (2016)
1 Cal.5th 432, 454 [requiring prejudice for reversal].) Here, Juror No. 11 was
replaced after deliberating for a maximum of 25 minutes by an alternate
who, as the court noted, was not challenged for cause by either party.
II. Preclusion of Impeachment with Prior Felony
Before the December 2024 jury trial, the prosecution moved in limine to
exclude evidence of Michael’s 2007 felony conviction for the manufacture of
methamphetamine and “an even older misdemeanor conviction for
misappropriation of lost property and possession of, a [section] 485” violation
from 1999.
The court (Hon. Robert S. Bowers) granted the motion over a defense
objection, reasoning that “[Michael is] not a percipient witness. He’s one of
two witnesses that [S.D.] reported to and that’s about it,” and although
“[t]hey are crimes of moral turpitude,” the convictions were “very remote” in
time. After further argument, the court reiterated that the convictions “are
very remote,” and Michael was “someone who something was reported to and
that’s it, pretty much, and as a parent. And, again, old felony; not relevant;
time is passed.”
Two months later, Mosby’s case proceeded to trial before a different
judge (Hon. E. Bradley Nelson), who adopted and expanded on the prior
ruling: “I’m echoing that ruling today, but add in as another basis it’s not
really a—it is a crime of moral turpitude, but it doesn’t really have the
elements of dishonesty or untruthfulness to it which is the most probative.”
As for the 1999 misdemeanor conviction for “misappropriation of lost
property,” the trial court explained, “typically, any misdemeanor, uncharged
conduct over 10 years, is usually not very probative on credibility.”
12
Ultimately, the court concluded: “I echo [the prior] ruling and bar both those
2007 and 1999 convictions pursuant to Evidence Code section 352.”
On appeal, Mosby argues the court’s refusal to allow the use of
Michael’s 2007 felony drug manufacturing conviction to impeach his
testimony denied Mosby the right to present a “complete defense.”
Specifically, Mosby asserts that disallowing impeachment with the prior
conviction “undermin[ed] the defense effort to encourage the jury to doubt
[Michael’s] account, and instead conclude that S.D. concocted a false
accusation against [Mosby] in order to ‘resolve the tension’ stemming from
her father’s intensely emotional confrontation with S.D.’s day care person
and with S.D. herself.” We are not persuaded.
“A witness may be impeached with any prior conduct involving moral
turpitude whether or not it resulted in a felony conviction, subject to the trial
court’s exercise of discretion under Evidence Code section 352.”14 (People v.
Clark (2011) 52 Cal.4th 856, 931.) The court may consider, among other
factors, whether the prior conviction is “near or remote in time.” (Id. at
p. 931.) “However, convictions remote in time are not automatically
inadmissible for impeachment purposes. Even a fairly remote prior
conviction is admissible if the defendant has not led a legally blameless life
since the time of the remote prior.” (People v. Mendoza (2000) 78 Cal.App.4th
918, 925–926.)
Here, we see no abuse of discretion. The court considered that
Michael’s first misdemeanor conviction was from 1999, “25 years ago,” and,
since the 2007 felony conviction, there had been “no subsequent [bad]
14 Our Supreme Court has determined that a “conviction for
manufacturing methamphetamine involve[s] an act of moral turpitude” in the
context of a State Bar inquiry. (In re Menna (1995) 11 Cal.4th 975, 989.)
13
conduct” except for “a DUI in 2011,” which the prosecution noted without
objection was “not a moral turpitude crime.” Moreover, as the trial court
reasoned, even if the prior convictions had been admitted and used to
impeach Michael’s truthfulness in testifying, his character for veracity is not
indicative of whether S.D. “concocted a false accusation” because Michael was
“not a percipient witness. He’s one of two witnesses that [S.D.] reported to
and that’s about it.” Thus, the convictions were both remote and isolated and
had little probative value.
Additionally, our Supreme Court has previously rejected Mosby’s
argument that the preclusion of impeachment with prior convictions violates
a defendant’s constitutional rights. (See, e.g., People v. Parker (2022)
13 Cal.5th 1, 55–56 [rejecting defendant’s argument that precluding
impeachment with a 33-year-old conviction “violated his rights to
confrontation and counsel”].) According to Mosby, his theory of defense was
that S.D. fabricated a story of abuse to “ ‘resolve the tension’ ” with Michael.
Consistent with his theory, in closing argument Mosby’s counsel argued that
S.D. had witnessed her father “confront” Linda about candy and “pick[ed] up
on these intense, intense adult emotions” from “people that she loves,” so
S.D.” “resolve[d] the tension” by “making up this story of what . . . Mosby did
to her.”
This reference shows Mosby presented his “complete defense” to the
jury, and we cannot see how his argument would have been strengthened by
reference to a 17-year-old felony conviction, particularly when Mosby’s
criminal conduct was specifically reported to police investigators by S.D. in a
recorded video that was shown to the jury, was testified to by S.D. at trial,
and was corroborated by Kristie’s testimony in addition to that of Michael.
Accordingly, we see no error.
14
III. Admission of CSAAS Testimony
CSAAS “describes the purportedly typical behavior of children who
have been victims of repeated sexual abuse by a family member or an adult
with whom the child has a trusting relationship” and is comprised of one or
more of five elements: (1) secrecy, (2) helplessness, (3) accommodation,
(4) delayed disclosure of abuse, and (5) recantation. (In re Amber B. (1987)
191 Cal.App.3d 682, 690, fn. 3; People v. Munch (2020) 52 Cal.App.5th 464,
470.)
Before trial, the court “tentatively” granted the district attorney’s
motion in limine to allow a CSAAS expert to testify at trial, recognizing that
“a limited amount of testimony as to [CSAAS] issues” may be relevant
depending on “how the evidence goes.” At a subsequent Evidence Code
section 402 hearing deciding the scope of Blacker’s testimony as that CSAAS
expert, the court granted Mosby’s request to preclude Blacker from testifying
about “retraction” and from “us[ing] the word entrapment” but otherwise
allowed her to testify about secrecy, helplessness, accommodations, and
delays in reporting associated with CSAAS.
Pursuant to the request of both parties, the court instructed the jury
with model jury instruction CALCRIM No. 1193 that it “may consider
[CSAAS] evidence only in deciding whether or not [S.D.’s] conduct was
consistent with the conduct of someone who has been molested, and in
evaluating the believability of her testimony.” During closing argument,
Mosby’s counsel repeatedly discounted Blacker’s testimony and asserted that
S.D. was “influenced by hypervigilant parents into making up this story of
what [Mosby] did to her.”
On appeal, Mosby “acknowledges,” as he must, “that California law
presently permits the admission of expert testimony concerning CSAAS, and
15
that [we are] bound by that precedent.” Indeed, as our Supreme Court has
explained: “expert testimony on the common reactions of child molestation
victims . . . is admissible to rehabilitate such witness’s credibility when the
defendant suggests that the child’s conduct after the incident—e.g., a delay in
reporting—is inconsistent with his or her testimony claiming molestation.
[Citations.] ‘Such expert testimony is needed to disabuse jurors of commonly
held misconceptions about child sexual abuse, and to explain the emotional
antecedents of abused children’s seemingly self-impeaching behavior.’ ”
(People v. McAlpin (1991) 53 Cal.3d 1289, 1300–1301 (McAlpin).) However,
citing extrajurisdictional case law, Mosby invites us to “reconsider the issue
and conclude that CSAAS evidence is inadmissible for any purpose.”
Following the principle of stare decisis, we decline Mosby’s invitation; it
is “not [our] function to attempt to overrule decisions of a higher court.”
(Auto Equity Sales, Inc. v. Superior Court (1962) 57 Cal.2d 450, 455 [decisions
of the California Supreme Court “are binding upon and must be followed by
all the state courts of California”].) Indeed, multiple California appellate
courts have rejected similar references to extrajurisdictional authorities.
(E.g., People v. Melgoza (2025) 115 Cal.App.5th 632, 655–656 [“Defendant’s
out of state authorities offer no compelling reason to depart from California
precedent”]; People v. Ramirez (2023) 98 Cal.App.5th 175, 216 [“Defendant’s
references to decisions from other jurisdictions that reached a different
position do not affect the binding nature of the McAlpin decision”]; People v.
Munch, supra, 52 Cal.App.5th at pp. 468–472 [“the vast majority of
jurisdictions . . . have rendered decisions that are consistent with McAlpin[,
supra, 53 Cal.3d 1289]”].)
Here, the trial court appropriately limited Blacker’s testimony to
relevant and admissible CSAAS topics as guided by our Supreme Court and
16
collateral courts and correctly instructed the jury on the limited purpose of
CSAAS. Testimony on secrecy, helplessness, accommodation, and delayed
disclosure was relevant based on S.D.’s interview and trial testimony that
Mosby told her to not tell her parents and that Mosby “controls” her, as well
as S.D.’s delayed reporting of the abuse. To the extent Mosby challenged the
factual basis for any CSAAS testimony below, the court granted his request
to exclude testimony regarding retraction and preclude use of the word
entrapment. The court also gave an appropriate limiting instruction
clarifying the purpose for which the jury might consider the CSAAS
testimony. (People v. Ortiz (2023) 96 Cal.App.5th 768, 816 [“multiple
California Courts of Appeal have upheld the language of CALCRIM 1193 as
accurately informing the jury of the limited use of CSAAS evidence”].)
Under the circumstances, we find no abuse of discretion in the trial
court’s conduct, nor do we see reason not to follow binding California
precedent.
DISPOSITION
The judgment is affirmed.
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DESAUTELS, J.
We concur:
STEWART, P. J.
SWEET, J.*
People v. Mosby (A172506)
* Judge of the Marin Superior Court, assigned by the Chief Justice
pursuant to article VI, section 6 of the California Constitution.
18