jury a unanimity instruction (California) · Go Syfert
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jury a unanimity instruction in California

21 California opinions name it 1 courts 1987–2025 2 in the last five years

The cases below were cited by California courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.

Followed or applied (13)

CaseFollowedCited
People v. Diazgreen
calctapp · 1987 · cited in 5 California opinions naming this issue, 2013–2022
2 sentences

2022She told the jury: “[D]efendant is charged with assault with force likely to produce great bodily injury as against Jane Doe for punching her during that [October 6] incident, causing injury.” (Italics added.) “The alternative to giving the jury a unanimity instruction is for the prosecution to elect a single act for each charge.” (People v. Diaz (1987) 195 Cal.App.3d 1375, 1381 .) When a prosecutor clearly informs the jury in argument of the specific act that she is relying on to prove a specific count, no 8 unanimity instruction is required as to that count.

2020(People v. Diaz (1987) 195 Cal.App.3d 1375, 1382 ; accord, People v. Jantz (2006) 137 Cal.App.4th 1283, 1292 ; People v. Mayer (2003) 108 Cal.App.4th 403, 418-419 ; People v. Hawkins (2002) 98 Cal.App.4th 1428, 1455 .) In the absence of a prosecutor’s election, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based on several possible acts.

25
People v. Diedrichgreen
cal · 1982 · cited in 3 California opinions naming this issue, 1988–2020
2 sentences

2020(People v. Diedrich (1982) 31 Cal.3d 263, 280-281 ; see People v. Crandell (1988) 46 Cal.3d 833, 874-875 [“‘[a]s long as there are multiple acts presented to the jury which could constitute the charged offense, a defendant is entitled to an instruction on unanimity’”]; People v. Melhado (1998) 60 Cal.App.4th 1529, 1534 [“if the prosecution shows several acts, each of which could constitute a separate offense, a unanimity instruction is required”].) “‘In deciding whether to give the instruction, the trial court must ask whether (1) there is a risk the jury may divide on two discrete crimes and

2020(People v. Russo (2001) 25 Cal.4th 1124, 1132 (Russo); People v. Diedrich (1982) 31 Cal.3d 263, 281 (Diedrich).) A unanimous verdict, in criminal cases, aims to “‘eliminate the danger that the defendant will be convicted even though there is no single offense which all the jurors agree the defendant committed.’” (Russo, at p. 1132, quoting People v. Sutherland (1993) 17 Cal.App.4th 602, 612 .) Thus, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based upon one of several possible acts.

23
People v. Luethgreen
calctapp · 2012 · cited in 2 California opinions naming this issue, 2013–2020
2 sentences

2020(Diedrich, at pp. 280-282; see People v. Madden (1981) 116 Cal.App.3d 212, 215-217 [explaining the decisional history regarding the need for a unanimity instruction].) “‘We review de novo a claim that the trial court failed to properly instruct the jury on the applicable principles of law. [Citation.]’ [Citation.]” (People v. Lueth (2012) 206 Cal.App.4th 189, 195 (Lueth).) 2 CALCRIM No. 3500 provides: “The defendant is charged with ___ < insert description of alleged offense > [in Count ___] [sometime during the period of ___ to ____]. [¶] The People have presented evidence of more than one ac

2013We rejected that argument, holding that “[U]nder established California law, no unanimity instruction is required to prevent a less than unanimous verdict where the evidence independently proves acts which support defendant’s liability either as a 13 principal or as and aider and abettor.” (Id. at p. 617; see also to the same general effect, People v. Lueth (2012) 206 Cal.App.4th 189, 195-199 .) In his briefs to us, appellant cites several cases where the appellate court found error in the failure to give the jury a unanimity instruction, but all of them are easily distinguishable.

22
People v. Gordongreen
calctapp · 1985 · cited in 2 California opinions naming this issue, 1987–1988
2 sentences

1988Appellant’s Contention Appellant contends that the trial court erred in failing to instruct 3 the jury that it must unanimously agree on the underlying act forming the basis of a finding of guilty. *826 Discussion Appellant contends that the trial court should have given the jury a unanimity instruction. 4 The purpose behind a unanimity instruction is that: “when the accusatory pleading charges a single criminal act and the evidence shows more than one such unlawful act, either the prosecution must select the specific act relied upon to prove the charge or the jury must be instructed in the wo

1988Appellant’s Contention Appellant contends that the trial court erred in failing to instruct 3 the jury that it must unanimously agree on the underlying act forming the basis of a finding of guilty. *826 Discussion Appellant contends that the trial court should have given the jury a unanimity instruction. 4 The purpose behind a unanimity instruction is that: “when the accusatory pleading charges a single criminal act and the evidence shows more than one such unlawful act, either the prosecution must select the specific act relied upon to prove the charge or the jury must be instructed in the wo

22
People v. Russogreen
cal · 2001 · cited in 4 California opinions naming this issue, 2013–2025
2 sentences

2025(People v. Russo (2001) 25 Cal.4th 1124, 1132 .) If a defendant 4 is charged with one crime but the evidence suggests more than one criminal act, either (1) the prosecution must elect the crime on which it relies or (2) the court must give the jury a unanimity instruction requiring them to agree on one act for which the defendant is culpable.

2020(People v. Russo (2001) 25 Cal.4th 1124, 1132 (Russo); People v. Diedrich (1982) 31 Cal.3d 263, 281 (Diedrich).) A unanimous verdict, in criminal cases, aims to “‘eliminate the danger that the defendant will be convicted even though there is no single offense which all the jurors agree the defendant committed.’” (Russo, at p. 1132, quoting People v. Sutherland (1993) 17 Cal.App.4th 602, 612 .) Thus, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based upon one of several possible acts.

14
People v. Melhadogreen
calctapp · 1998 · cited in 4 California opinions naming this issue, 2013–2020
2 sentences

2014(People v. Melhado (1998) 60 Cal.App.4th 1529, 1534 .) The alternative to giving the jury a unanimity instruction, however, is for the prosecution to elect a single act for each charge.

2013(People v. Melhado (1998) 60 Cal.App.4th 1529, 1534 .) The alternative to giving the jury a unanimity instruction, however, is for the prosecution to elect a single act for each charge.

14
People v. Jantzgreen
calctapp · 2006 · cited in 2 California opinions naming this issue, 2020–2022
2 sentences

2022(People v. Jantz (2006) 137 Cal.App.4th 1283, 1292 .) Here, the prosecutor made a clear election as to count 3, so no unanimity instruction was required as to that count.

2020(People v. Diaz (1987) 195 Cal.App.3d 1375, 1382 ; accord, People v. Jantz (2006) 137 Cal.App.4th 1283, 1292 ; People v. Mayer (2003) 108 Cal.App.4th 403, 418-419 ; People v. Hawkins (2002) 98 Cal.App.4th 1428, 1455 .) In the absence of a prosecutor’s election, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based on several possible acts.

12
People v. Crandellgreen
cal · 1988 · cited in 2 California opinions naming this issue, 2010–2020
2 sentences

2020(People v. Diedrich (1982) 31 Cal.3d 263, 280-281 ; see People v. Crandell (1988) 46 Cal.3d 833, 874-875 [“‘[a]s long as there are multiple acts presented to the jury which could constitute the charged offense, a defendant is entitled to an instruction on unanimity’”]; People v. Melhado (1998) 60 Cal.App.4th 1529, 1534 [“if the prosecution shows several acts, each of which could constitute a separate offense, a unanimity instruction is required”].) “‘In deciding whether to give the instruction, the trial court must ask whether (1) there is a risk the jury may divide on two discrete crimes and

2010Defendant's actions in resisting, first at her desk, then at the doorway, and then at the stairwell were "so closely connected in time as to form part of one transaction." ( People v. Crandell, supra , 46 Cal.3d at p. 875 ; People v. Stankewitz, supra , 51 Cal.3d at p. 100 ; People v. McIntyre, supra , 115 Cal.App.3d at pp. 908-911 .) Accordingly, the trial court properly did not give the jury a unanimity instruction.

12
People v. Maddengreen
calctapp · 1981 · cited in 1 California opinions naming this issue, 2020–2020
1 sentence

2020(Diedrich, at pp. 280-282; see People v. Madden (1981) 116 Cal.App.3d 212, 215-217 [explaining the decisional history regarding the need for a unanimity instruction].) “‘We review de novo a claim that the trial court failed to properly instruct the jury on the applicable principles of law. [Citation.]’ [Citation.]” (People v. Lueth (2012) 206 Cal.App.4th 189, 195 (Lueth).) 2 CALCRIM No. 3500 provides: “The defendant is charged with ___ < insert description of alleged offense > [in Count ___] [sometime during the period of ___ to ____]. [¶] The People have presented evidence of more than one ac

11
Chapman v. Californiared
scotus · 1967 · cited in 1 California opinions naming this issue, 2013–2013
1 sentence

2013Harmless Error Even assuming that the trial court should have given the jury a unanimity instruction as to the false imprisonment charge, any error was harmless under the circumstances, whether assessed under the standard for constitutional violations (Chapman v. California (1967) 386 U.S. 18, 24 (Chapman)) or the standard for state law error (People v. Watson (1956) 46 Cal.2d 818, 836 (Watson)).

11
People v. Wolfegreen
calctapp · 2003 · cited in 1 California opinions naming this issue, 2013–2013
1 sentence

2013(See People v. Wolfe (2003) 114 Cal.App.4th 177, 185-186 (Wolfe) [noting split in authority].) ―The erroneous failure to give a unanimity instruction is harmless if disagreement among the jurors concerning the different specific acts proved is not reasonably possible.‖ (People v. Napoles (2002) 104 Cal.App.4th 108, 119 , fn. omitted.) ―[S]uch 9 disagreement is unlikely [when] the true issue in the case was a single credibility dispute.‖ (Id. at p. 120.) Here, defendant ―presented a unitary defense‖ with respect to all of the acts that could have constituted the false imprisonment charge.

11
People v. Watsongreen
cal · 1956 · cited in 1 California opinions naming this issue, 2013–2013
1 sentence

2013Harmless Error Even assuming that the trial court should have given the jury a unanimity instruction as to the false imprisonment charge, any error was harmless under the circumstances, whether assessed under the standard for constitutional violations (Chapman v. California (1967) 386 U.S. 18, 24 (Chapman)) or the standard for state law error (People v. Watson (1956) 46 Cal.2d 818, 836 (Watson)).

11
People v. Alvagreen
calctapp · 1979 · cited in 1 California opinions naming this issue, 1987–1987
2 sentences

1987(People v. Alva (1979) 90 Cal.App.3d 418, 426 [ 153 Cal.Rptr. 644 ].) The alternative to giving the jury a unanimity instruction is for the prosecution to elect a single act for each charge.

1987(People v. Alva (1979) 90 Cal.App.3d 418, 426 [ 153 Cal.Rptr. 644 ].) The alternative to giving the jury a unanimity instruction is for the prosecution to elect a single act for each charge.

11

Distinguished, questioned or overruled (0)

CaseNegativeCited
No negative-treatment citations attached to this issue in California. Read the followed side critically anyway.

Also cited on this issue (16)

CaseCitedYears
People v. Mayer green
calctapp · 2003
2 sentences

2020(People v. Diaz (1987) 195 Cal.App.3d 1375, 1382 ; accord, People v. Jantz (2006) 137 Cal.App.4th 1283, 1292 ; People v. Mayer (2003) 108 Cal.App.4th 403, 418-419 ; People v. Hawkins (2002) 98 Cal.App.4th 1428, 1455 .) In the absence of a prosecutor’s election, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based on several possible acts.

2014He insists that these two possessions were separated by time and place, and they were each subject to unique defenses. “‘It is fundamental that a criminal conviction requires a unanimous jury verdict [citations].’” (People v. Thompson (1995) 36 Cal.App.4th 843, 850 .) “When a defendant is charged with a single offense, but there is proof of several acts, any one of which could support a conviction, either the prosecution must select the specific act relied upon to prove the charge, or the jury must be instructed that all the jurors must agree that the defendant committed the same act or acts.

22014–2020
People v. Stankewitz green
cal · 1990
2 sentences

2015We reject Belcher's contention that the court erred by failing to instruct the jury on unanimity because the record shows he "offer[ed] essentially the same defense to each of 26 the acts, and there is no reasonable basis for the jury to distinguish between them" (Stankewitz, supra, 51 Cal.3d at p. 100 ).

2010Defendant's actions in resisting, first at her desk, then at the doorway, and then at the stairwell were "so closely connected in time as to form part of one transaction." ( People v. Crandell, supra , 46 Cal.3d at p. 875 ; People v. Stankewitz, supra , 51 Cal.3d at p. 100 ; People v. McIntyre, supra , 115 Cal.App.3d at pp. 908-911 .) Accordingly, the trial court properly did not give the jury a unanimity instruction.

22010–2015
People v. Estrada green
cal · 1995
2 sentences

2013(People v. Koontz (2002) 27 Cal.4th 1041, 1085 ; People v. Estrada (1995) 11 Cal.4th 568, 574 .) 10 Because the trial produced testimony that defendant had the shotgun on the day before the incident at the Texaco station, he contends the court ought to have given the jury a unanimity instruction.

2013(People v. Koontz (2002) 27 Cal.4th 1041, 1085 ; People v. Estrada (1995) 11 Cal.4th 568, 574 .) 10 Because the trial produced testimony that defendant had the shotgun on the day before the incident at the Texaco station, he contends the court ought to have given the jury a unanimity instruction.

22013–2013
People v. Napoles green
calctapp · 2002
2 sentences

2013Thus, in People v. Napoles (2002) 104 Cal.App.4th 108, 114-117 , our colleagues in Division Five of this court ruled that no unanimity instruction was required in the trial of a mother and father convicted of felony child abuse for mistreatment of their child over a several-month period of time; in so ruling, the court stated: “Even when the prosecution proves more unlawful acts than were charged, no unanimity instruction is required where the acts proved constitute a continuous course of conduct. [Citation.] ‘ “This exception arises in two contexts.

2013(See People v. Wolfe (2003) 114 Cal.App.4th 177, 185-186 (Wolfe) [noting split in authority].) ―The erroneous failure to give a unanimity instruction is harmless if disagreement among the jurors concerning the different specific acts proved is not reasonably possible.‖ (People v. Napoles (2002) 104 Cal.App.4th 108, 119 , fn. omitted.) ―[S]uch 9 disagreement is unlikely [when] the true issue in the case was a single credibility dispute.‖ (Id. at p. 120.) Here, defendant ―presented a unitary defense‖ with respect to all of the acts that could have constituted the false imprisonment charge.

22013–2013
People v. Koontz green
cal · 2002
2 sentences

2013(People v. Koontz (2002) 27 Cal.4th 1041, 1085 ; People v. Estrada (1995) 11 Cal.4th 568, 574 .) 10 Because the trial produced testimony that defendant had the shotgun on the day before the incident at the Texaco station, he contends the court ought to have given the jury a unanimity instruction.

2013(People v. Koontz (2002) 27 Cal.4th 1041, 1085 ; People v. Estrada (1995) 11 Cal.4th 568, 574 .) 10 Because the trial produced testimony that defendant had the shotgun on the day before the incident at the Texaco station, he contends the court ought to have given the jury a unanimity instruction.

22013–2013
People v. Sutherland green
calctapp · 1993
1 sentence

2020(People v. Russo (2001) 25 Cal.4th 1124, 1132 (Russo); People v. Diedrich (1982) 31 Cal.3d 263, 281 (Diedrich).) A unanimous verdict, in criminal cases, aims to “‘eliminate the danger that the defendant will be convicted even though there is no single offense which all the jurors agree the defendant committed.’” (Russo, at p. 1132, quoting People v. Sutherland (1993) 17 Cal.App.4th 602, 612 .) Thus, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based upon one of several possible acts.

12020–2020
People v. Hawkins green
calctapp · 2002
1 sentence

2020(People v. Diaz (1987) 195 Cal.App.3d 1375, 1382 ; accord, People v. Jantz (2006) 137 Cal.App.4th 1283, 1292 ; People v. Mayer (2003) 108 Cal.App.4th 403, 418-419 ; People v. Hawkins (2002) 98 Cal.App.4th 1428, 1455 .) In the absence of a prosecutor’s election, a trial court has a sua sponte duty to give the jury a unanimity instruction where a single crime could be based on several possible acts.

12020–2020
Batson v. Kentucky green
scotus · 1986
1 sentence

2014We affirm. 1 All statutory citations are to the Penal Code unless otherwise noted. 2 People v. Wheeler (1978) 22 Cal.3d 258 (Wheeler); Batson v. Kentucky (1986) 476 U.S. 79 (Batson). 2 BACKGROUND I.

12014–2014
People v. Riel green
cal · 2000
1 sentence

2014(People v. Riel (2000) 22 Cal.4th 1153, 1199 .) The trial court did not err in not giving the jury, sua sponte, a unanimity instruction.

12014–2014
People v. Thompson green
calctapp · 1995
1 sentence

2014He insists that these two possessions were separated by time and place, and they were each subject to unique defenses. “‘It is fundamental that a criminal conviction requires a unanimous jury verdict [citations].’” (People v. Thompson (1995) 36 Cal.App.4th 843, 850 .) “When a defendant is charged with a single offense, but there is proof of several acts, any one of which could support a conviction, either the prosecution must select the specific act relied upon to prove the charge, or the jury must be instructed that all the jurors must agree that the defendant committed the same act or acts.

12014–2014
In Re Alvernaz green
cal · 1992
1 sentence

2014(In re Alvernaz, supra, 2 Cal.4th at p. 938 .) IV INSTRUCTIONAL ERROR A. Unanimity Instruction The court gave the jury a unanimity instruction, CALCRIM No. 3500 on counts 5, 6, 8, and 9 involving K.A.

12014–2014
People v. McNeill green
calctapp · 1980
1 sentence

2014(People v. Diaz (1987) 195 Cal.App.3d 1375, 1381 (Diaz).) Here, the prosecutor clearly stated in closing argument to the jury that appellant was guilty in count 1 of threatening Gutierrez-Medina and guilty in count 2 of threatening Lucero P. Appellant relies on People v. McNeill (1980) 112 Cal.App.3d 330, 334-336 , for the proposition that where the defendant is charged with assaulting multiple victims in a continuous course of conduct, it is error for the trial court not to give the unanimity instruction.

12014–2014
People v. Wheeler green
cal · 1978
1 sentence

2014We affirm. 1 All statutory citations are to the Penal Code unless otherwise noted. 2 People v. Wheeler (1978) 22 Cal.3d 258 (Wheeler); Batson v. Kentucky (1986) 476 U.S. 79 (Batson). 2 BACKGROUND I.

12014–2014
People v. Maury green
cal · 2003
1 sentence

2013(People v. Diaz (1987) 195 Cal.App.3d 1375, 1381 (Diaz).) Furthermore, no unanimity instruction is required where a defendant’s acts constitute a single continuous course of conduct—“whose acts were so closely connected in time as to form part of one transaction. [Citations.]” (People v. Maury (2003) 30 Cal.4th 342, 423 .) 6.

12013–2013
People v. Bui green
calctapp · 2011
1 sentence

2013In the circumstances, the prosecutor was not required to elect which among the shots she relied on for the attempted murder charge, and the trial court was not required to give the jury a unanimity instruction.” ( Bui, supra, 192 Cal.App.4th at pp. 1010-1011.) Many other published decisions hold to the same effect.

12013–2013
Yeager v. United States green
scotus · 2009
1 sentence

2010As the United States Supreme Court has made clear, “speculation into what transpired in the jury room” should not play a part in double jeopardy analysis. ( Yeager, supra, 557 U.S. at p._[ 129 S.Ct. at p. 2368 ].) Although an election by a prosecutor will avoid the necessity of giving a jury a unanimity instruction where conviction on a single count could be based on two or more discrete criminal events shown by the evidence, the issue before us is not whether defendant’s right to a unanimous verdict was protected.

12010–2010

Statutes the citing opinions construe

CA § Cal. Evidence Code § 352 (3)

Counted by distinct opinions that both name this issue and are annotated to the section; sections every opinion cites regardless of issue are not filtered here, so read the counts against the total above.

Where else courts name it

CA 21 (1987–2025) KS 10 (2013–2026) WA 7 (1995–2025) AL 2 (2017–2017) CO 2 (2012–2018) SD 2 (2018–2024)

Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.

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