Moving for a Mistrial After Improper Jury Argument

What Makes a Jury Argument Improper in Texas?

Texas confines closing argument to four approved areas: summation of the evidence, reasonable deductions from that evidence, answers to opposing counsel, and pleas for law enforcement. A remark that strays outside those lanes — injecting new facts, attacking the lawyer, or appealing to raw prejudice — is improper and can support an objection.

The Texas Court of Criminal Appeals has stated the boundaries plainly. In Wesbrook v. State and again in Freeman v. State, the court held that proper jury argument generally falls within one of four areas: summation of the evidence, reasonable deduction from the evidence, answer to an argument of opposing counsel, and plea for law enforcement. Everything a prosecutor says in closing is supposed to trace back to one of those categories.

Stepping outside the four areas does not automatically doom a conviction. Under Wesbrook, argument that exceeds the permissible bounds becomes reversible error only when, viewed against the whole record, it is extreme or manifestly improper, violates a mandatory statute, or injects new and harmful facts into the case. That is a demanding threshold. It means the defense cannot win a mistrial simply by showing the prosecutor wandered off-script; counsel must show the remark did real, lasting damage that the trial could not absorb.

Understanding which category a remark belongs to — or fails to belong to — is the first move in any objection. It also shapes the second move: asking the court to cure the harm, and only then asking for the trial to be scrapped.

Curable Error Versus the Incurable Remark

Nearly all improper argument is curable. When the judge sustains an objection and tells the jury to disregard the comment, Texas law presumes the jurors obey, and the error is treated as erased. A mistrial becomes necessary only for the narrow class of remarks that no instruction can neutralize.

This presumption does heavy lifting. In Hawkins v. State, the Court of Criminal Appeals explained that a mistrial is the remedy for conduct “so prejudicial that expenditure of further time and expense would be wasteful and futile,” and that only in extreme circumstances, where the prejudice is incurable, will a mistrial be required. The trial judge, the court said, effectively performs an appellate function on the spot: deciding whether the improper conduct is so harmful that the case must be redone.

The presumption that jurors follow an instruction to disregard is settled. Wesbrook confirmed that in most instances an instruction to disregard cures the error, and that a reviewing court presumes the jury complied. Archie v. State applied the same rule to a comment on the defendant’s failure to testify: because the trial court sustained the objection and gave the instruction, the only remaining question was whether refusing a mistrial was an abuse of discretion.

So what is incurable? Texas courts reserve that label for argument so inflammatory that the instruction cannot realistically withdraw the impression from the jurors’ minds — for example, an appeal that injects a defendant’s unproven prior crimes as a reason to convict, or a naked appeal to racial or community bias, delivered in a way an instruction cannot walk back. These are rare. The practical consequence is that a defendant who wants a mistrial must build a record showing the remark was not just wrong, but beyond repair.

How Courts Decide: The Mosley Three-Factor Test

When a defendant challenges the denial of a mistrial for improper argument, Texas courts apply the Mosley factors: the severity of the misconduct, the curative measures taken, and the certainty of conviction absent the misconduct. The same calculus guides the trial judge ruling on the motion in the first place.

The framework comes from Mosley v. State, which borrowed a three-part harm analysis from federal practice: (1) the severity of the misconduct, meaning the magnitude of the prejudicial effect; (2) the measures adopted to cure it, meaning the efficacy of any cautionary instruction; and (3) the certainty of conviction absent the misconduct, meaning the strength of the evidence. Hawkins then held that this tailored Mosley test is the correct tool for reviewing a mistrial denial, at least where no separate constitutional right is implicated, and Archie confirmed it.

Each factor pulls in a recognizable way. On severity, particularly offensive or outrageous conduct gives rise to a natural inference of prejudice. On curative measures, a prompt, specific instruction — and sometimes a prosecutor’s own retraction or apology — weighs heavily toward cure, as Hawkins recognized. On certainty of conviction, a strong, independent case makes it far less likely that one improper sentence changed the verdict; a thin, closely contested case makes the same sentence far more dangerous.

For the defense, the test is a roadmap. The stronger the showing that the remark was severe, that the instruction was weak or absent, and that the State’s case was otherwise close, the closer the argument moves toward the incurable end of the spectrum — and the harder it becomes for a court to call the denial of a mistrial reasonable.

Striking at the Defendant Over the Shoulders of Counsel

One recurring category of improper argument is the prosecutor who attacks defense counsel personally — suggesting the lawyer fabricated a defense, coached witnesses, or is trying to deceive the jury. Argument aimed at the defendant through counsel’s character is improper, although Texas usually treats it as curable rather than incurable.

Mosley itself addressed this move. The court explained that a prosecutor runs a risk of improperly striking at a defendant “over the shoulder of counsel” when the argument is made in terms of defense counsel personally and when it explicitly impugns the lawyer’s character. Comments on defense counsel’s honesty fall outside the four permissible areas, but Mosley classified them as nonconstitutional error subject to the ordinary harm analysis — not as a category that automatically requires reversal or mistrial.

Two close cousins deserve mention. First, a comment on the defendant’s failure to testify is improper and touches a constitutional nerve, but Archie shows that even there, a sustained objection and instruction to disregard usually cure it, leaving only the abuse-of-discretion question. Second, arguing facts outside the record — inviting the jury to imagine evidence that was never admitted — is improper under Wesbrook, which called it plainly improper to invite the jury to speculate on the existence of evidence not presented, yet found the comment there cured by an instruction.

The lesson is consistent across all three sub-types. Personal attacks, no-testimony comments, and outside-the-record claims are genuinely improper, and the defense should object to each. But winning a mistrial on any of them requires the extra step of showing the remark was so extreme that the instruction could not have worked.

When a Plea for Law Enforcement Goes Too Far

A prosecutor may urge the jury to enforce the law and deter crime, but may not argue that the community, or any group within it, demands a particular verdict. The line between a proper plea for law enforcement and an improper appeal to community pressure is a frequent mistrial battleground in Texas trials.

Freeman drew the line carefully. The State may argue the relationship between the jury’s verdict and the general deterrence of crime, and may urge jurors to deter certain offenses by their verdicts. What the State may not do, Freeman held, is argue that the community or any segment of the community demands or expects a certain verdict or punishment. Telling jurors that “this county expects you to convict” converts a legitimate deterrence theme into an improper appeal to outside pressure.

Why does the distinction matter so much? A deterrence argument asks the jury to apply the law to the evidence in front of it. A community-demand argument asks the jury to answer to people who are not in the courtroom, who never heard the evidence, and whose expectations have nothing to do with proof beyond a reasonable doubt. It substitutes public sentiment for the record. That is precisely the kind of new, harmful matter that can push an argument toward the manifestly improper end of the Wesbrook standard.

Even so, most improper law-enforcement pleas are curable. As with the other categories, the defense should object the moment the prosecutor crosses from deterrence into community demand, secure an instruction to disregard, and preserve the point — reserving the mistrial argument for the rare case where the appeal was so charged that no instruction could contain it.

Which Improper Arguments Are Most Likely to Be Incurable?

Because the incurable category is so narrow, it helps to know which remarks Texas courts scrutinize most closely. Appeals to convict based on unproven other crimes, naked appeals to racial or community prejudice, and arguments that shift or dilute the State’s burden of proof are the comments most likely to resist a curative instruction.

The first high-risk category is propensity: urging the jury to convict because the defendant is the kind of person who commits crimes, or because of unproven prior offenses. This is the same danger Rule 404(b) guards against during the evidence phase, and when a prosecutor smuggles it into closing, courts view it as especially corrosive because it invites a verdict based on character rather than proof of the charged offense.

A second category is the appeal to prejudice. Argument that leans on a defendant’s race, ethnicity, religion, or immigration status — or that tells jurors their neighbors will judge them for the verdict — injects considerations that have nothing to do with the evidence. As Freeman recognized in the community-demand context, argument that asks jurors to answer to outside pressure rather than the record is improper, and the most inflammatory versions are the ones an instruction is least able to repair.

A third category strikes at the burden of proof itself: telling the jury the defendant had to prove his innocence, that reasonable doubt means something less than the law provides, or that the defendant’s silence supplies the missing proof. Because the burden of proof is the backbone of a criminal trial, misstatements that shift or dilute it threaten the fairness of the whole verdict, and courts treat them with corresponding seriousness.

Even these arguments are frequently cured by a prompt, firm instruction, and Texas courts rarely label an argument truly incurable. But they are where the Mosley severity factor weighs heaviest, and where a defendant who preserves a careful record has the best chance of persuading a court that no instruction could have undone the damage.

Preserving the Complaint: Objection, Instruction, Mistrial

To keep the issue alive, the defense normally objects, asks the judge to instruct the jury to disregard the remark, and then moves for a mistrial. Skipping a step can forfeit a curable complaint. But when an argument is genuinely incurable, a motion for a mistrial by itself preserves the point for appeal.

Archie, drawing on Young v. State, described how this works. The usual sequence is objection, request for an instruction to disregard, and motion for mistrial, but that exact sequence is not always essential; the essential requirement is a timely, specific request that the trial court refuses. A request for an instruction is necessary only when such an instruction could have had its intended effect — allowing the trial to continue before an impartial jury. A party who fails to ask for an instruction forfeits review of the class of errors that an instruction could have cured. If, however, an instruction could not have cured the harm, the only suitable remedy is a mistrial, and a motion for mistrial is the only prerequisite to raising the complaint on appeal.

Timing is equally important. The objection must come when the argument is made, not after the jury retires; a late objection risks waiver. Counsel should state the specific ground — that the remark falls outside the four permissible areas and identify which line it crossed — so the record shows exactly what was wrong. When the court sustains the objection and instructs the jury, the defense should still move for a mistrial if it believes the damage is beyond repair, because, as Archie explained, the denial of that motion is then the only ruling that can be appealed.

Handled correctly, this three-step approach protects the client either way: it maximizes the chance the harm is cured on the spot, and it preserves a clean record if the remark was one the trial simply could not survive.

Where This Fits

This guide is one of four situations that arise under the Motion for Mistrial. Start with the parent motion for the overall framework, or move to a related fact pattern:

What the Case Law Says

These decisions—verified against primary sources—control how this issue is litigated. Every case still turns on its own facts.

• Mosley v. State, 983 S.W.2d 249 (Tex. Crim. App. 1998) — Harm from improper jury argument is measured by three factors: severity of the misconduct, curative measures taken, and certainty of conviction absent it.
• Hawkins v. State, 135 S.W.3d 72 (Tex. Crim. App. 2004) — Only in extreme circumstances, where prejudice from improper argument is incurable, will a mistrial be required; the Mosley factors govern.
• Archie v. State, 221 S.W.3d 695 (Tex. Crim. App. 2007) — Where an objection is sustained and an instruction given, the only issue is whether denying a mistrial was an abuse of discretion.
• Wesbrook v. State, 29 S.W.3d 103 (Tex. Crim. App. 2000) — Proper argument covers four areas; an instruction to disregard an improper remark is presumed obeyed and usually cures the error.
• Freeman v. State, 340 S.W.3d 717 (Tex. Crim. App. 2011) — The State may argue deterrence but may not argue that the community demands a particular verdict or punishment.

General summaries of published opinions for information only — not predictions about any specific case.