Fifth Amendment: Double Jeopardy (1791)
The government cannot try a defendant for the same crime more than once. This prevents double jeopardy (being tried more than once for the same offense.) It inhibits the government from using its power and financial resources to try a suspect over and over until getting a guilty verdict. Additionally, it helps ensure justice be encouraging the state to be sure of its case before proceeding. This protection is part of the due process rights protected by the Fifth Amendment.