People v. Doan CA6

California Court of Appeal·Decided July 28, 2026·No. H052907·Unpublished

Opinion

Filed 7/28/26 P. v. Doan CA6

NOT TO BE PUBLISHED IN OFFICIAL REPORTS California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for publication or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 This opinion has not been certified for publication or ordered published for purposes of rule 8.1115.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

SIXTH APPELLATE DISTRICT

THE PEOPLE, H052907 (Santa Clara County

Plaintiff and Respondent, Super. Ct. No. C2304219)

v.

TIN DUC DOAN,

Defendant and Appellant.

A jury convicted defendant Tin Duc Doan of six sexual crimes committed against his minor daughter, including four counts of forcible lewd or lascivious act on a child under age 14 (Pen. Code,1 § 288, subd. (b)(1) (§ 288(b)(1))). The trial court sentenced Doan to 52 years in prison.

On appeal, Doan contends the trial court erred by precluding cross-

examination of the victim about school absences and poor grades, instructing the jury on unanimity using CALCRIM No. 3501 (CALCRIM 3501), and imposing upper term sentences on the forcible lewd or lascivious act convictions because the alleged aggravating circumstances constituted elements of the charged offense. Doan further claims that his defense

1 All further unspecified statutory references are to the Penal Code.

counsel was prejudicially ineffective for not objecting to the court’s failure to state its reasons for imposing a consecutive sentence on a conviction of forcible sexual penetration (§ 289, subd. (a)(1)(A)). In supplemental briefing filed upon this court’s request, Doan contends the 10-year upper term sentences imposed on his forcible lewd or lascivious act convictions violate the prohibition against ex post facto laws. The Attorney General agrees.

For the reasons explained below, we reject Doan’s claims of evidentiary and instructional error. However, because Doan’s 10-year prison terms constitute ex post facto punishment, we reverse the judgment, vacate Doan’s sentence, and remand for a new sentencing hearing.

I. FACTS AND PROCEDURAL BACKGROUND A. Charges In October 2024, the Santa Clara County District Attorney filed a second amended information (information) charging Doan with six sexual crimes committed against N. Doe,2 namely, four counts of forcible lewd or lascivious act on a child under age 14 (§ 288(b)(1); counts 1–4), attempted forcible rape (§§ 261, subd. (a)(2), 664; count 5), and forcible sexual penetration (§ 289, subd. (a)(1)(A); count 6). The offenses in counts 1 through 4 allegedly occurred about and between April 2007 and March 2015; the offenses in counts 5 and 6 allegedly occurred between April 2017 and March 2018. The information further alleged in each count the aggravating circumstances that Doan took advantage of a position of trust or confidence to

2 The information identified the minor victim by her first name and the

pseudonym “Doe.” We refer to the minor by the first initial of her first name (and hereafter as Doe) and other persons by their initials to protect personal privacy interests. (See Cal. Rules of Court, rule 8.90(b)(4), (10)–(11).)

commit the offense (Cal. Rules of Court,3 rule 4.421(a)(11)), and that the victim was particularly vulnerable (rule 4.421(a)(3)).

B. Prosecution Evidence at Trial4 Doan was born in 1970. His daughter, Doe, was born in 2001. At the time of Doan’s trial in October 2024, Doe was 23 years old and about to graduate from nursing school.

Doe testified that when she was two years old, she and her mother moved to the United States from Vietnam and began living with Doan and his extended family. Doe, her mother, and Doan eventually resided in a house in San Jose with Doe’s paternal grandparents, her aunt and uncle, and two cousins (one of whom is N.D.). Doe initially slept in a room with her parents and later shared a bedroom with her cousins’ grandmother. Doe’s mother worked many hours each day. Doan was Doe’s primary caretaker. Doan would leave for work at 5:00 a.m. and return around 3:00 p.m.

Doe explained that her family primarily spoke Vietnamese at home, her family’s culture was “very traditional,” and children were expected to defer and listen to their elders.5 If Doe wanted a snack, she had to ask Doan for permission. Doan was responsible for disciplining Doe. If Doe stayed on a computer too long, failed to get good grades, or talked back, Doan would hit Doe on her buttocks more than once with his hand, a coat hanger, or a stick. This discipline happened once or twice a week. Doan sometimes threatened

3 All further unspecified rule references are to the California Rules of

Court.

4 Doan did not present any evidence in his defense. 5 Doe’s cousin N.D. likewise testified that Doe’s extended family was a

very traditional, conservative Vietnamese family in which “kids’ opinions don’t really matter.”

to tell Doe’s mother about Doe’s misbehavior. Doan’s threats scared Doe because she did not want to disappoint her mother.

When Doe was eight or nine years old and in the second (2008–2009 school year) or third grade (2009–2010 school year), Doan began sexually abusing her. While tucking Doe into bed before her mother got home from work, Doan would “go under [Doe’s] shirt and touch [her] breasts” with his hand. Doan’s conduct “didn’t feel right” to Doe, but Doe loved and trusted Doan and she was just “a kid” who thought Doan was “hugging” and “playing” with her. This sort of touching occurred “[a]lmost every day.”

Later, when Doe was nine or 10 years old, Doan would sometimes lick Doe’s nipples—in addition to touching her breasts. The licking made Doe feel “weird.” Doan licked Doe’s nipples for a “couple minutes,” “[m]any times,” almost daily until “[i]t stopped for a little bit when [Doe] was in middle school.” Doe also testified that this sort of touching “occurred uninterrupted essentially from the second or third grade through at least the sixth grade.”6 Doan was usually “grumpy,” but when Doan touched Doe, he “would laugh, smile, [and] joke around.”

When Doe was in the fourth or fifth grade, she told her mother that she (Doe) did not “like the way dad touches me.” Doe’s mother responded by saying “it’s okay, [] it’s your dad. He’s probably just playing with you. You’re taking it the wrong way.” This response made Doe feel like she was “invisible.”

When Doe was in the fifth grade (2011–2012 school year), she told Doan, “can you stop touching me.” Doe’s statement made Doan “kind of

6 On cross-examination, when defense counsel asked Doe how long the

“initial touching[ and] licking of [her] breast” lasted, Doe stated, “From when I was in second or third grade to seventh, eighth grade middle school.”

upset,” which caused Doe to “feel like [she] was wrong” and “shouldn’t say that to him.” Doan made Doe “feel stupid” for telling him to stop. Soon after Doe told Doan to stop touching her, Doan ceased doing so for two or three months. Thereafter, Doan resumed touching Doe’s breasts with his hands and licking her nipples multiple times a week.

Doe recounted an incident of breast touching that occurred when she was in the sixth grade (2012–2013 school year). Doan touched Doe’s breasts while she was working on a computer in her room during daytime. Doan’s conduct made Doe feel helpless. After Doe “began puberty” and had her first menstrual cycle (when she was in the sixth grade), she had a greater understanding of the sexual nature of the touching and was more uncomfortable.

Free access — add to your briefcase to read the full text and ask questions with AI

People v. Doan CA6, (Cal. Ct. App. 2026).

People v. Doan CA6 (People v. Doan CA6) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

Chapman v. California
386 U.S. 18 (Supreme Court, 1967)
Delaware v. Van Arsdall
475 U.S. 673 (Supreme Court, 1986)
Olden v. Kentucky
488 U.S. 227 (Supreme Court, 1988)
People v. Clark
261 P.3d 243 (California Supreme Court, 2011)
People v. DeHoyos
303 P.3d 1 (California Supreme Court, 2013)
The People v. Fernandez
216 Cal. App. 4th 540 (California Court of Appeal, 2013)
People v. Wilks
578 P.2d 1369 (California Supreme Court, 1978)
People v. Riel
998 P.2d 969 (California Supreme Court, 2000)
People v. Jones
792 P.2d 643 (California Supreme Court, 1990)
People v. Watson
299 P.2d 243 (California Supreme Court, 1956)
People v. Jennings
807 P.2d 1009 (California Supreme Court, 1991)
People v. Zamora
230 Cal. App. 3d 1627 (California Court of Appeal, 1991)
People v. Fernandez
226 Cal. App. 3d 669 (California Court of Appeal, 1990)
People v. Castorena
51 Cal. App. 4th 558 (California Court of Appeal, 1996)
People v. Dancer
45 Cal. App. 4th 1677 (California Court of Appeal, 1996)
People v. Clark
12 Cal. App. 4th 663 (California Court of Appeal, 1992)
People v. Burbine
131 Cal. Rptr. 2d 628 (California Court of Appeal, 2003)
People v. Cardenas
21 Cal. App. 4th 927 (California Court of Appeal, 1994)
People v. Hiscox
38 Cal. Rptr. 3d 781 (California Court of Appeal, 2006)
People v. Soto
245 P.3d 410 (California Supreme Court, 2011)