Deadlocked Jury: What Happens And What It Means For Defendants
Learn what a deadlocked jury means, how judges respond, and what it can mean for mistrials, retrials, and your criminal case.
When a jury cannot agree on a verdict, courts face a difficult question: keep deliberations going or end the trial without a decision. This situation, known as a deadlocked jury or hung jury, can dramatically change the course of a criminal or civil case. It may result in a mistrial, a retrial, or sometimes the end of the prosecution altogether.
Deadlocked Jury vs. Ordinary Disagreement
Jurors are expected to disagree at first. Debate and discussion are part of the normal deliberation process. A deadlock goes beyond ordinary disagreement.
- Ordinary disagreement: Jurors are still talking, exchanging views, and some movement in votes is happening.
- Deadlocked jury: After sustained, honest efforts, jurors report that they cannot reach the required level of agreement.
In most U.S. criminal cases, the law requires a unanimous verdict, meaning every juror must agree on guilt or innocence. If even one juror consistently disagrees, and that impasse cannot be overcome, the jury is considered deadlocked.
Key Legal Terms You Should Know
| Term | Basic Meaning |
|---|---|
| Deadlocked jury / Hung jury | A jury that, despite reasonable efforts, cannot reach a verdict by the required voting margin. |
| Mistrial | A trial that ends without a valid verdict, often because the jury is deadlocked, among other possible reasons. |
| Allen charge (“dynamite” charge) | A special instruction sometimes given to a deadlocked jury, urging further deliberations while warning jurors not to abandon sincere beliefs. |
| Double jeopardy | Constitutional protection in criminal cases that generally prevents being tried twice for the same offense after a final verdict of acquittal or conviction. |
How a Jury Deadlock Typically Arises
A jury does not become “hung” the moment its first vote is split. Courts expect deliberations to take time. A deadlock usually becomes clear through several steps:
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- The jury deliberates for a significant period.
- One or more jurors send a note saying they are having trouble agreeing.
- The judge may answer legal questions or clarify instructions.
- Only after continued difficulty do jurors report that they are truly unable to reach a verdict.
At that point, the judge must decide whether there is any realistic chance that further discussion might help, or whether the disagreement is so entrenched that continued deliberation would be pointless or unfair.
What Judges Can Do When the Jury Says It Is Stuck
Trial judges have substantial discretion to manage deliberations, but they must avoid pressuring jurors into a verdict they do not genuinely support. Courts and appellate decisions have emphasized that any indication of coercion can make a verdict invalid on appeal.
In broad terms, judges have three main tools:
- Allow more deliberation without extra instruction
- Give a deadlock instruction (Allen charge)
- Declare a mistrial
1. Allowing More Time for Deliberation
Often, a jury’s first report of difficulty is not the end of the road. The judge might simply encourage jurors to continue deliberating, sometimes after addressing specific questions about the law or evidence.
Key considerations include:
- How long the jury has already deliberated
- The complexity and length of the trial
- Whether the jury’s votes have changed over time, suggesting progress
- Any signs of hostility or exhaustion among jurors
2. Using an Allen (Deadlock) Charge
In many jurisdictions, judges may read a special deadlock instruction to jurors who say they are unable to agree. This is commonly called an Allen charge or “dynamite charge,” named after a U.S. Supreme Court case that first approved the concept. The instruction is designed to encourage renewed discussion while reinforcing each juror’s duty to be honest and independent.
Typical features of an Allen-style instruction include:
- Reminding jurors of the importance of reaching a verdict if possible
- Asking jurors in the minority to consider whether their doubts are reasonable in light of the majority’s views
- Emphasizing that no juror should surrender a conscientious conviction just to join the majority or finish the case
- Reinforcing that the burden of proof and all prior legal instructions still apply
Appellate courts closely scrutinize how and when this instruction is given, because even subtle pressure can be seen as coercive. Ideally, the charge should be neutral, balanced, and only used after a clear indication of deadlock.
3. Declaring a Mistrial
If, after reasonable efforts and any appropriate instructions, jurors still cannot agree, the judge will typically declare a mistrial due to a deadlocked jury. A mistrial means the proceeding did not produce a valid verdict and is legally treated as incomplete.
From there, the case may be retried, resolved through plea negotiations, or in some situations dropped altogether.
Criminal vs. Civil Cases: How Deadlock Requirements Differ
The impact of a deadlock depends, in part, on whether the case is criminal or civil and on the jurisdiction’s rules about jury votes.
| Type of Case | Typical Vote Requirement | Effect of Deadlock |
|---|---|---|
| Criminal (U.S. federal and most states) | Unanimous verdict required for guilt and for acquittal in jury trials. | If jurors cannot agree unanimously, the result is a hung jury and usually a mistrial. |
| Civil cases | Some jurisdictions allow non-unanimous verdicts (for example, a supermajority), depending on state law. | If the required fraction of jurors cannot agree, the jury is deadlocked and a mistrial may be declared. |
What a Deadlocked Jury Means for the Defendant
In a criminal case, a deadlocked jury is often a mixed result for the defense: the defendant is not convicted, but also not fully cleared. There is no verdict of guilty or not guilty, and the prosecution may have another opportunity to prove its case.
1. Possibility of a Retrial
After a mistrial caused by jury deadlock, the government is generally allowed to retry the defendant on the same charges, because there has been no final resolution of guilt or innocence. The Double Jeopardy Clause does not usually prevent a second trial in this situation, as long as the mistrial was properly declared and not the result of prosecutorial or judicial misconduct intended to provoke a mistrial.
Whether a retrial actually happens is a strategic decision.
- Prosecutors may choose to retry the case, especially if the vote count suggested most jurors favored conviction.
- They may decide to offer a plea bargain, particularly if the evidence appears weaker than expected or witnesses are reluctant to testify again.
- In some instances, the prosecution may dismiss the charges rather than pursue another lengthy and uncertain trial.
2. Impact on Defense Strategy
For defendants and defense attorneys, a hung jury presents several possibilities:
- Using the deadlock to argue for dismissal or at least for reduced or alternative charges
- Negotiating a more favorable plea agreement than was available before the first trial
- Preparing for a retrial with adjustments based on what was learned about the prosecution’s evidence and the jury’s apparent concerns
The practical impact of a deadlock can be significant: witnesses’ memories fade, evidence may be reexamined, and public interest may decrease over time, all of which may change how a retrial unfolds.
Why Courts Are Cautious About Coercion
Judges are under pressure to resolve cases, but they must not sacrifice fairness. Appellate courts repeatedly warn that trial judges may not “couch an instruction to a jury or otherwise act in any way that would appear to coerce any juror to reach a hasty decision or to abandon a conscientious belief.”
When reviewing whether an Allen charge or other deadlock response was coercive, appellate courts look at the totality of the circumstances, including:
- The exact wording of the instruction
- How long the jury deliberated before and after the instruction
- The overall length and complexity of the trial
- Any signs of pressure, such as comments about expense, time, or the court’s desire for a verdict
If a reviewing court finds that a verdict was the product of improper pressure on jurors—especially on those in the minority—it may overturn the conviction and remand for a new trial.
Factors That Commonly Lead to Deadlock
Every jury is different, but some recurring issues often stand behind a hung jury:
- Disputes about credibility: Jurors may sharply disagree about whether key witnesses are truthful or reliable.
- Conflicting interpretations of evidence: Physical evidence, recordings, and documents may be seen in very different ways depending on jurors’ backgrounds and perspectives.
- Differing views of the law: Even with instructions, jurors may disagree about what legal standards like “beyond a reasonable doubt” or “intent” require.
- Strong moral or emotional reactions: In serious or high-profile cases, deep moral beliefs can make compromise more difficult.
Good jury instructions, clear presentation of evidence, and careful jury selection are all aimed at reducing these conflicts, but they cannot eliminate the possibility of a deadlock.
Practical Takeaways for Defendants and Families
If you or a loved one is involved in a case where the jury appears to be struggling, it helps to understand what may come next.
- A report that the jury is “having difficulty” does not automatically mean a mistrial is coming.
- Judges may use an Allen charge or other instructions to try to break the impasse, but they must preserve each juror’s independence.
- If the jury ultimately deadlocks and a mistrial is declared, the prosecution will decide whether to retry the case, negotiate, or dismiss the charges.
- A hung jury is not a conviction and not an acquittal; it is a procedural turning point that often requires fresh legal strategy from both sides.
Because the consequences can be complex and highly dependent on local law, anyone facing a possible retrial after a deadlock should consult an experienced criminal defense attorney.
Frequently Asked Questions (FAQs)
Q: Is a deadlocked jury the same as an acquittal?
No. A deadlocked jury produces no verdict at all. Unlike an acquittal, it does not bar the government from retrying the case in most situations, because there has been no final resolution of guilt or innocence.
Q: Can a judge force the jury to reach a verdict?
A judge cannot legally force a particular verdict. The court may encourage further deliberations and give a neutral Allen charge, but it must not coerce any juror to abandon a sincere belief simply to reach agreement.
Q: How many times can the prosecution retry a case after hung juries?
There is no single nationwide limit; some jurisdictions allow multiple retrials after successive hung juries, while others may limit them in practice or by policy. In reality, prosecutors often reassess the strength of the case after one or two deadlocks and may choose not to retry.
Q: Does double jeopardy stop a retrial after a hung jury?
Generally no. The Double Jeopardy Clause primarily protects against a second trial after an acquittal or after certain types of final judgments. Because a mistrial for jury deadlock does not result in a final verdict, a retrial is usually allowed, assuming the mistrial was properly declared.
Q: Can jury deadlock happen in civil cases too?
Yes. Civil juries can also become deadlocked when they cannot reach the level of agreement required by state law. In that event, the judge may declare a mistrial, and the parties must decide whether to settle or retry the case.
References
- Deadlocked jury — Cornell Law School Legal Information Institute (LII) Wex. 2022-08-01. https://www.law.cornell.edu/wex/deadlocked_jury
- The Danger of Deadlock: Coercion in the Courtroom — The Florida Bar Journal. 2012-01-01. https://www.floridabar.org/the-florida-bar-journal/the-danger-of-deadlock-coercion-in-the-courtroom/
- Hung Juries — Law Offices of John W. McKendree (newsletter discussing jury deadlock). 2019-01-01. https://www.mckendreelaw.com/newsletters/general-litigation/hung-juries/
- Understanding Deadlocks in the Courtroom: What They Mean and What Happens Next — State Law Firm. 2023-06-01. https://statelawfirm.com/post/understanding-deadlocks-in-the-courtroom/
- What Is a Deadlocked Jury? — CountyOffice.org (YouTube video transcript). 2021-05-10. https://www.youtube.com/watch?v=H51vUawonaE
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