advocate-witness rule (California) · Go Syfert
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advocate-witness rule in California

10 California opinions name it 1 courts 2013–2026 8 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 (14)

CaseFollowedCited
People v. Donaldsongreen
calctapp · 2001 · cited in 5 California opinions naming this issue, 2013–2025
2 sentences

2025It may not be clear whether a statement by an advocate-witness should be taken as proof or as an analysis of the proof.’ ” (Donaldson, supra, 93 Cal.App.4th at p. 929 .) The People do not dispute that the advocate-witness rule applies to a prosecutor’s unsworn statements at a restitution hearing.

2025Nonetheless, regardless of whether the prosecutor’s actions are characterized as prosecutorial misconduct or a violation of the advocate- witness rule, the record does not reveal any prejudice to defendants. 6 Prosecutorial error is evaluated under the Chapman standard of prejudice when a prosecutor’s behavior “ ‘ “is sufficiently egregious that it infects the trial with such a degree of unfairness as to render the subsequent conviction a denial of due process, [such that] the federal Constitution is violated.” ’ ” (People v. Shazier (2014) 60 Cal.4th 109, 127 .) Under that standard, “the [app

35
People Ex Rel. Deparment of Corporations. v. Speedee Oil Change Systems, Inc.green
cal · 1999 · cited in 3 California opinions naming this issue, 2022–2025
2 sentences

2025Dept. of Corporations v. SpeeDee Oil Change Systems, Inc. (1999) 20 Cal.4th 1135, 1145 .) “In exercising its discretion to disqualify counsel under the advocate-witness rule, a court must consider: (1) ‘“‘whether counsel’s testimony is, in fact, genuinely needed’”’; (2) ‘the possibility [opposing] counsel is using the motion for purely tactical reasons’; and (3) ‘the combined effects of the strong 6 C.G. suggests that the trial court failed to consider her informed written consent.

2023“In exercising its discretion to disqualify counsel under the advocate-witness rule, a court must consider: (1) ‘ “ ‘whether counsel’s testimony is, in fact, genuinely needed’ ” ’; (2) ‘the possibility [opposing] counsel is using the motion to disqualify for purely tactical reasons’; and (3) ‘the combined effects of the strong interest parties have in representation by counsel of their choice, and in avoiding the duplicate expense and time-consuming effort involved in replacing counsel already familiar with the case.’ ” (Yim, supra, 55 Cal.App.5th at p. 583; see Smith, Smith & Kring v. Superio

23
Smith, Smith & Kring v. Superior Court of Orange Cty.green
calctapp · 1997 · cited in 3 California opinions naming this issue, 2020–2023
2 sentences

2023“In exercising its discretion to disqualify counsel under the advocate-witness rule, a court must consider: (1) ‘ “ ‘whether counsel’s testimony is, in fact, genuinely needed’ ” ’; (2) ‘the possibility [opposing] counsel is using the motion to disqualify for purely tactical reasons’; and (3) ‘the combined effects of the strong interest parties have in representation by counsel of their choice, and in avoiding the duplicate expense and time-consuming effort involved in replacing counsel already familiar with the case.’ ” (Yim, supra, 55 Cal.App.5th at p. 583; see Smith, Smith & Kring v. Superio

2023(See Lopez, at p. 425; Smith, Smith & Kring v. Superior Court, supra, 8 Rather than the exception in California’s advocate-witness rule for cases in which the client has given its informed written consent, rule 3.7(a)(3) of the ABA Model Rules of Professional Conduct allows a lawyer to act as an advocate at a trial in which the lawyer is also likely to be a necessary witness when “disqualification of the lawyer would work substantial hardship on the client.” 18 60 Cal.App.4th at p. 582 ; see also Doe v. Yim, supra, 55 Cal.App.5th at p. 584 [trial court must make specific findings of fact when

23
Kennedy v. Eldridgegreen
calctapp · 2011 · cited in 3 California opinions naming this issue, 2020–2025
2 sentences

2025(In re Jasmine S. (2007) 153 Cal.App.4th 835, 843 .) The prospective ethical violation at issue here was violation of the “advocate-witness rule,” which “prohibits an attorney from acting both as an advocate and a witness in the same proceeding.” (Kennedy v. Eldridge (2011) 201 Cal.App.4th 1197, 1208 .) The advocate-witness rule is codified in California Rules of Professional Conduct, rule 3.7, which provides in relevant part: “A lawyer shall not act as an advocate in a trial in which the lawyer is likely to be a witness unless: [¶] (1) the lawyer’s testimony relates to an uncontested issue or

2021(Kennedy v. Eldridge (2011) 201 Cal.App.4th 1197, 1208 .) Neither of these cases hold a trial court possesses a sua sponte duty to prevent a violation of the advocate-witness rule notwithstanding defense counsel’s failure to object to the purported violation.

13
People v. KEICHLERgreen
calctapp · 2005 · cited in 1 California opinions naming this issue, 2025–2025
1 sentence

2025(People v. Gemelli (2008) 161 Cal.App.4th 1539, 1543 .) “A victim’s statement of economic loss is prima facie evidence of loss.” (People v. Grandpierre (2021) 66 Cal.App.5th 111 , 115; People v. Keichler, supra, 129 Cal.App.4th at p. 1048 [“statements 6 Though neither party addressed this precise issue, the parties’ briefs note the relevant facts and the burden-shifting framework in restitution hearings, and arguments concerning the effect of the challenged statements on the restitution orders are fairly included within the issue of prejudice.

11
People v. Guerrerogreen
calctapp · 1975 · cited in 1 California opinions naming this issue, 2025–2025
1 sentence

2025Further, on the inadequate record before us, we cannot conclude that the restitution orders were affected by the prosecutor’s comments at the restitution hearing, considering the burden-shifting framework applicable to restitution hearings.6 (See People v. Guerrero (1975) 47 Cal.App.3d 441, 444 [concluding that the prosecutor’s violation of the advocate-witness rule was harmless because the guilty verdicts on some of the charges gave rise to an inference that the prosecutor’s testimony did not affect the verdicts].) Under section 1202.4, a victim who seeks restitution from the defendant has th

11
UNITED STATES of America, Plaintiff-Appellee, v. Troy Anthony EDWARDS, Defendant-Appellantgreen
ca9 · 1998 · cited in 1 California opinions naming this issue, 2025–2025
2 sentences

2025As Donaldson recognized, the advocate-witness rule addresses the risk “ ‘that jurors will be unduly influenced by the prestige and prominence of the prosecutor’s office and will base their credibility determinations on improper factors.’ ” ( Donaldson, supra, 93 Cal.App.4th at pp. 928–929, italics added; see U.S. v. Edwards (9th Cir. 1998) 154 F.3d 915, 921 [“the danger in having a prosecutor testify as a witness is that jurors will automatically presume the prosecutor to be credible and will not consider critically any evidence that may suggest otherwise”]; Doe v. Yim (2020) 55 Cal.App.5th 57

2025As Donaldson recognized, the advocate-witness rule addresses the risk “ ‘that jurors will be unduly influenced by the prestige and prominence of the prosecutor’s office and will base their credibility determinations on improper factors.’ ” ( Donaldson, supra, 93 Cal.App.4th at pp. 928–929, italics added; see U.S. v. Edwards (9th Cir. 1998) 154 F.3d 915, 921 [“the danger in having a prosecutor testify as a witness is that jurors will automatically presume the prosecutor to be credible and will not consider critically any evidence that may suggest otherwise”]; Doe v. Yim (2020) 55 Cal.App.5th 57

11
People v. Pensingergreen
cal · 1991 · cited in 1 California opinions naming this issue, 2025–2025
1 sentence

2025Nonetheless, regardless of whether the prosecutor’s actions are characterized as prosecutorial misconduct or a violation of the advocate- witness rule, the record does not reveal any prejudice to defendants. 6 Prosecutorial error is evaluated under the Chapman standard of prejudice when a prosecutor’s behavior “ ‘ “is sufficiently egregious that it infects the trial with such a degree of unfairness as to render the subsequent conviction a denial of due process, [such that] the federal Constitution is violated.” ’ ” (People v. Shazier (2014) 60 Cal.4th 109, 127 .) Under that standard, “the [app

11
Gutierrez v. G & M OIL COMPANY, INC.green
calctapp · 2010 · cited in 1 California opinions naming this issue, 2023–2023
1 sentence

2023Engineers, Inc. v. Municipal Court, supra, 21 Cal.3d at p. 731 [“a corporation not itself being a natural person, can make a court appearance only through a natural person”]; Gutierrez v. G & M Oil Co., Inc. (2010) 184 Cal.App.4th 551, 564 [“unlike an attorney who represents himself [citation], a corporation must be represented in court by an attorney”]; Paradise v. Nowlin (1948) 86 Cal.App.2d 897, 898 .) Thus, even when the corporation is a law firm being represented by its own shareholder attorneys, the advocate-witness rule remains in play if those shareholder attorneys are also serving as

11
Comden v. Superior Courtgreen
cal · 1978 · cited in 1 California opinions naming this issue, 2023–2023
1 sentence

2023(See Comden v. Superior Court (1978) 20 Cal.3d 906, 912 [“An attorney who attempts to be both advocate and witness impairs his credibility as witness and diminishes his effectiveness as advocate.”]; see also Donaldson, supra, 93 Cal.App.4th at p. 928 [“ ‘If a lawyer is both counsel and witness, he becomes more easily impeachable for interest and thus may be a less effective witness.’ ”].

11
People Ex Rel. Younger v. Superior Courtgreen
calctapp · 1978 · cited in 1 California opinions naming this issue, 2023–2023
1 sentence

2023Younger v. Superior Court, supra, 86 Cal.App.3d at p. 193 [interpreting former rule].) Further, as noted in Yim, courts around the country have understood the advocate-witness rule to mean an implicated attorney “ ‘may not participate in “any pretrial activities which carry the risk of revealing the attorney’s dual role to the jury.” [Citation.] In particular, a testifying attorney should not take or defend depositions.’ ” (Yim, at p. 583.) As one out-of-state court explained, “ ‘Testimony from an oral deposition could not be easily read into evidence without revealing [counsel’s] identity as

11
Merco Construction Engineers, Inc. v. Municipal Courtgreen
cal · 1978 · cited in 1 California opinions naming this issue, 2023–2023
1 sentence

2023Engineers, Inc. v. Municipal Court, supra, 21 Cal.3d at p. 731 [“a corporation not itself being a natural person, can make a court appearance only through a natural person”]; Gutierrez v. G & M Oil Co., Inc. (2010) 184 Cal.App.4th 551, 564 [“unlike an attorney who represents himself [citation], a corporation must be represented in court by an attorney”]; Paradise v. Nowlin (1948) 86 Cal.App.2d 897, 898 .) Thus, even when the corporation is a law firm being represented by its own shareholder attorneys, the advocate-witness rule remains in play if those shareholder attorneys are also serving as

11
People v. Spectorgreen
calctapp · 2011 · cited in 1 California opinions naming this issue, 2021–2021
1 sentence

2021(See People v. Spector (2011) 194 Cal.App.4th 1335, 1372, fn. 12 [declining to address issue not properly raised in opening brief].) In an attempt to get around forfeiture, defendant argues the trial court possessed a sua sponte duty to prevent the prosecutor from calling another prosecutor from her office to testify as an expert in reading and interpreting records of conviction, and by failing to do so, impugned the integrity of the judicial process and violated defendant’s due process right to a fair trial.

11
McDermott Will & Emery LLP v. Superior Court of Orange Countygreen
calctapp · 2017 · cited in 1 California opinions naming this issue, 2020–2020
1 sentence

2020(See McDermott Will & Emery LLP v. Superior Court (2017) 10 Cal.App.5th 1083, 1124 (McDermott).) 2.

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 (15)

CaseCitedYears
Lyle v. Superior Court green
calctapp · 1981
2 sentences

2013Rather, Luster's representation, and supporting evidence showing, that Franceschi acted as Midway's manager during the period of time it took actions that arguably could provide a defense for Luster are sufficient to show Franceschi is a material witness for purposes of the advocate-witness rule. 9 adverse impact on the opposing party. ( Donaldson, supra, 93 Cal.App.4th at pp. 927- 929; Lyle, supra, 122 Cal.App.3d at p. 480 .) Opposing counsel may be handicapped in cross-examining and in arguing the credibility of trial counsel who also acts as a witness.

2013Rather, Luster's representation, and supporting evidence showing, that Franceschi acted as Midway's manager during the period of time it took actions that arguably could provide a defense for Luster are sufficient to show Franceschi is a material witness for purposes of the advocate-witness rule. 9 adverse impact on the opposing party. ( Donaldson, supra, 93 Cal.App.4th at pp. 927- 929; Lyle, supra, 122 Cal.App.3d at p. 480 .) Opposing counsel may be handicapped in cross-examining and in arguing the credibility of trial counsel who also acts as a witness.

42013–2025
People v. Morris green
cal · 1991
1 sentence

2026(People v. Morris, supra, 53 Cal.3d at p. 190 .) 18 18 Defendants argue for the first time on appeal that like the advocate-witness rule, California Rules of Professional Conduct, rule 3.7, the court should have first considered whether Glass’s testimony was genuinely needed.

12026–2026
In Re Jasmine S. green
calctapp · 2007
1 sentence

2025(In re Jasmine S. (2007) 153 Cal.App.4th 835, 843 .) The prospective ethical violation at issue here was violation of the “advocate-witness rule,” which “prohibits an attorney from acting both as an advocate and a witness in the same proceeding.” (Kennedy v. Eldridge (2011) 201 Cal.App.4th 1197, 1208 .) The advocate-witness rule is codified in California Rules of Professional Conduct, rule 3.7, which provides in relevant part: “A lawyer shall not act as an advocate in a trial in which the lawyer is likely to be a witness unless: [¶] (1) the lawyer’s testimony relates to an uncontested issue or

12025–2025
People v. Vargas green
cal · 1973
1 sentence

2025Nonetheless, regardless of whether the prosecutor’s actions are characterized as prosecutorial misconduct or a violation of the advocate- witness rule, the record does not reveal any prejudice to defendants. 6 Prosecutorial error is evaluated under the Chapman standard of prejudice when a prosecutor’s behavior “ ‘ “is sufficiently egregious that it infects the trial with such a degree of unfairness as to render the subsequent conviction a denial of due process, [such that] the federal Constitution is violated.” ’ ” (People v. Shazier (2014) 60 Cal.4th 109, 127 .) Under that standard, “the [app

12025–2025
People v. Gemelli green
calctapp · 2008
1 sentence

2025(People v. Gemelli (2008) 161 Cal.App.4th 1539, 1543 .) “A victim’s statement of economic loss is prima facie evidence of loss.” (People v. Grandpierre (2021) 66 Cal.App.5th 111 , 115; People v. Keichler, supra, 129 Cal.App.4th at p. 1048 [“statements 6 Though neither party addressed this precise issue, the parties’ briefs note the relevant facts and the burden-shifting framework in restitution hearings, and arguments concerning the effect of the challenged statements on the restitution orders are fairly included within the issue of prejudice.

12025–2025
People v. Shazier green
cal · 2014
1 sentence

2025Nonetheless, regardless of whether the prosecutor’s actions are characterized as prosecutorial misconduct or a violation of the advocate- witness rule, the record does not reveal any prejudice to defendants. 6 Prosecutorial error is evaluated under the Chapman standard of prejudice when a prosecutor’s behavior “ ‘ “is sufficiently egregious that it infects the trial with such a degree of unfairness as to render the subsequent conviction a denial of due process, [such that] the federal Constitution is violated.” ’ ” (People v. Shazier (2014) 60 Cal.4th 109, 127 .) Under that standard, “the [app

12025–2025
Sheppard, Mullin, Richter & Hampton, LLP v. J-M Mfg. Co. green
cal · 2018
1 sentence

2024(Sheppard, Mullin, Richter & Hampton, LLP v. J-M Manufacturing Co., Inc. (2018) 6 Cal.5th 59 , 73–74.) Applicable here, rule 3.7 prohibits an attorney from acting as an 7 advocate in a trial in which the lawyer is likely to be a witness, unless one of the following three exceptions applies: “(1) the lawyer’s testimony relates to an uncontested issue or matter; “(2) the lawyer’s testimony relates to the nature and value of legal services rendered in the case; or “(3) the lawyer has obtained informed written consent from the client.” (Rule 3.7(a).) When ruling on a motion to disqualify counsel b

12024–2024
Wu v. O'Gara Coach Co. green
calctapp5d · 2019
2 sentences

2024Rule 3.7(b) provides that “a lawyer may act as an advocate in a trial in which another lawyer in the lawyer’s firm is likely to be called as a witness unless precluded from doing so by [Rules of Professional Conduct,] rule 1.7 or 1.9.”8 (See Wu v. O’Gara Coach Co., LLC (2019) 38 Cal.App.5th 1069 , 1084– 1085 [that attorney might testify at trial does not warrant disqualification of other lawyers at attorney’s firm under the advocate-witness rule].) The sole basis for Vafaei’s disqualification is his dual role as advocate-witness.

2024Rule 3.7(b) provides that “a lawyer may act as an advocate in a trial in which another lawyer in the lawyer’s firm is likely to be called as a witness unless precluded from doing so by [Rules of Professional Conduct,] rule 1.7 or 1.9.”8 (See Wu v. O’Gara Coach Co., LLC (2019) 38 Cal.App.5th 1069 , 1084– 1085 [that attorney might testify at trial does not warrant disqualification of other lawyers at attorney’s firm under the advocate-witness rule].) The sole basis for Vafaei’s disqualification is his dual role as advocate-witness.

12024–2024
Presnick v. Esposito green
connappct · 1986
2 sentences

2023(See, e.g., Rosenthal Furs, Inc. v. Fine (2022) 282 N.C.App. 530 [ 871 S.E.2d 153 , 159–160] [addressing rule 3.7 of the North Carolina Rules of Professional Conduct, and citing cases holding the same in Louisiana, South Carolina, and Utah]; Presnick v. Esposito (1986) 8 Conn.App. 364 [ 513 A.2d 165, 167 ] [holding none of the reasons for the advocate-witness rule applies “where the attorney seeks only to represent himself in his own case”].)7 7 Each of the cited cases address their own state’s version of Rule 3.7, all modeled after rule 3.7 of the American Bar Association Model Rules of Profe

2023(See, e.g., Rosenthal Furs, Inc. v. Fine (2022) 282 N.C.App. 530 [ 871 S.E.2d 153 , 159–160] [addressing rule 3.7 of the North Carolina Rules of Professional Conduct, and citing cases holding the same in Louisiana, South Carolina, and Utah]; Presnick v. Esposito (1986) 8 Conn.App. 364 [ 513 A.2d 165, 167 ] [holding none of the reasons for the advocate-witness rule applies “where the attorney seeks only to represent himself in his own case”].)7 7 Each of the cited cases address their own state’s version of Rule 3.7, all modeled after rule 3.7 of the American Bar Association Model Rules of Profe

12023–2023
Hetos Investments, Ltd. v. Kurtin green
calctapp · 2003
1 sentence

2023(See Hetos Investments, Ltd. v. Kurtin, supra, 110 Cal.App.4th at pp. 49–51 [rejecting appellant’s contention that the trial court failed to make the required “ ‘specific findings of fact when weighing the conflicting interests,’ ” where there were no material factual disputes].) The Firm argues that the motion must have been brought as a litigation tactic because (i) despite knowing of their likely dual roles, Nelson did not object to the Dyers’ representation for almost two years, including while they were taking and defending depositions; (ii) defendants, themselves, had long benefited from

12023–2023
Paradise v. Nowlin green
calctapp · 1948
1 sentence

2023Engineers, Inc. v. Municipal Court, supra, 21 Cal.3d at p. 731 [“a corporation not itself being a natural person, can make a court appearance only through a natural person”]; Gutierrez v. G & M Oil Co., Inc. (2010) 184 Cal.App.4th 551, 564 [“unlike an attorney who represents himself [citation], a corporation must be represented in court by an attorney”]; Paradise v. Nowlin (1948) 86 Cal.App.2d 897, 898 .) Thus, even when the corporation is a law firm being represented by its own shareholder attorneys, the advocate-witness rule remains in play if those shareholder attorneys are also serving as

12023–2023
National Child Care, Inc. v. Dickinson green
iowa · 1989
1 sentence

2023(See Harris & Hilton, P.A., at p. 284; cf. Premium Products, Inc., at p. 437 [“The proposition that a corporation has no right to pro se representation holds just as true for small, closely-held plaintiffs as for 8 At least one state’s high court has held to the contrary (see National Child Care, Inc. v. Dickinson (Iowa 1989) 446 N.W.2d 810 , 811–812), but we are not persuaded by that decision’s conclusory holding that a sole shareholder representing his corporation does not present the usual dangers of harm to the opponent and to the integrity of the judicial process. 12.

12023–2023
State Farm Fire & Casualty Company v. Pietak green
calctapp · 2001
1 sentence

2021“Cases are not authority for propositions not considered therein.” (State Farm Fire & Casualty Co. v. Pietak (2001) 90 Cal.App.4th 600, 614 .) We decline to impose such a duty in this case.

12021–2021
People v. Ballard green
calctapp · 1980
2 sentences

2021(People v. Ballard (1980) 104 Cal.App.3d 757, 762 .) Moreover, although defendant relies on People v. Donaldson (2001) 93 Cal.App.4th 916 , a case in which the appellate court held defense counsel provided constitutionally deficient assistance by failing to object to a prejudicial violation of the advocate-witness rule, defendant here does not specifically argue ineffective assistance of counsel in his briefing on appeal and has therefore forfeited such an argument.

2021(People v. Ballard (1980) 104 Cal.App.3d 757, 762 .) Moreover, although defendant relies on People v. Donaldson (2001) 93 Cal.App.4th 916 , a case in which the appellate court held defense counsel provided constitutionally deficient assistance by failing to object to a prejudicial violation of the advocate-witness rule, defendant here does not specifically argue ineffective assistance of counsel in his briefing on appeal and has therefore forfeited such an argument.

12021–2021
People v. Linton green
cal · 2013
1 sentence

2021Analysis “It is generally prohibited for a prosecutor to act as both an advocate and a witness. [Citation.] ‘Within the criminal justice system, the prohibition against a 15 prosecutor’s acting as both advocate and witness addresses “the concern that jurors will be unduly influenced by the prestige and prominence of the prosecutor’s office and will base their credibility determinations on improper factors.” ’ [Citation.]” (People v. Linton (2013) 56 Cal.4th 1146, 1185-1186 .) As a preliminary matter, we note defendant has forfeited any claim the prosecutor engaged in misconduct by violating th

12021–2021

Where else courts name it

NY 57 (1983–2025) IL 20 (1985–2025) OH 10 (2006–2025) CA 10 (2013–2026) WA 8 (2014–2022) PA 4 (1988–2018) NE 3 (1989–2023) AK 3 (1990–2019) CO 3 (2005–2024) TX 2 (1991–1996) AZ 2 (2014–2021) CT 2 (1994–2014) NJ 2 (2019–2025) MD 2 (2003–2026)

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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