Louisiana Code of Criminal Procedure Tit. XVIII, Art. 592. When jeopardy begins

When a defendant pleads not guilty and is tried by jury, jeopardy begins when the jury panel is sworn pursuant to Article 790. When a defendant pleads not guilty, and is tried without a jury, jeopardy begins when the first witness is sworn at the trial on the merits. When a defendant pleads guilty, jeopardy begins when a valid sentence is imposed.