non bis in idem

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
NON BIS IN IDEM, civil law. This phrase signifies that no one shall be twice 
tried for the same offence; that is, that when a party accused has been once 
tried by a tribunal in the last resort, and either convicted or acquitted, 
he shall not again be tried. Code 9, 2, 9 & 11. Merl. Repert. h.t. Vide 
art. Jeopardy. 
    

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