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Legal Dictionary

Mistrial

Definition

A trial rendered invalid through an error in the proceedings.

Deep Dive

A mistrial is a trial that has been rendered invalid, usually due to a fundamental error in the proceedings, misconduct, or the jury's inability to reach a unanimous verdict (a "hung jury"). When a judge declares a mistrial, the legal proceedings up to that point are essentially nullified, as if the trial never happened. This decision is not an acquittal or a conviction but rather a determination that the trial cannot proceed fairly or legitimately to a conclusion.

Examples & Use Cases

  • 1The jury in a high-profile case is unable to reach a unanimous verdict after weeks of deliberation, leading the judge to declare a hung jury and a mistrial.
  • 2A mistrial is declared when a prosecutor inadvertently presents highly prejudicial and inadmissible evidence to the jury.
  • 3A juror is caught discussing the details of the ongoing trial with a member of the public, forcing the judge to halt proceedings.

Related Terms

Hung JuryNew TrialDue Process

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