Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Black's Law Dictionary: 2nd Edition

    In criminal pleading. A plea by the prisoner in bar of execution, alleging that he is not the same who was attainted, upon which a jury is immediately impaneled to try the collateral issue thus raised, viz., the identity of the person, and not whether he is guilty or innocent, for that has bcen already decided. 4 Bl. Comm. 396.