EX POST FACTO

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EX POST FACTO

EX POST FACTO, contracts, crim. law. This is a technical expression, which signifies, that something has been done after another thing, in relation to the latter. 2. An estate granted, may be made good or avoided by matter ex post facto, when an election is given to the party to accept or not to accept. 1 Co. 146. 3. The Constitution of the United States, art. 1, sec. 10, forbids the states to pass any ex post facto law; which has been defined to be one which renders the act punishable in a manner in which it was not punishable when it was committed. 6 Cranch, 138. This definition extends to laws passed after the act, and affecting a person by way of punishment of that act, either in his person or estate. 3 Dall. 386; 1 Blackf. Ind. R. 193 2 Pet. U. S. Rep. 413 1 Kent, Com. 408; Dane's Ab. Index, h.t. 4. This prohibition in the constitution against passing ex post facto law's, applies exclusively to criminal or penal cases, and not to civil cases. Serg. Const. Law, 356. Vide 2 Pick. R. 172; 11 Pick. R. 28; 2 Root, R. 350; 5 Monr. 133; 9 Mass. R. 363; 3 N. H. Rep. 475; 7 John. R. 488; 6 Binn. R. 271; 1 J. J. Marsh, 563; 2 Pet. R. 681; and the article Retrospective.

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