ex post facto

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ex post facto

adj. Latin for "after the fact," which refers to laws adopted after an act is committed making it illegal although it was legal when done, or increases the penalty for a crime after it is committed. Such laws are specifically prohibited by the U. S. Constitution, Article I, Section 9. Therefore, if a state legislature or Congress enact new rules of proof or longer sentences, those new rules or sentences do not apply to crimes committed before the new law was adopted.

ex post facto

adjective affecting a previous act, after, after the act is committed, after the fact, afterward, at a later period, at a later time, at a subsequent period, at a succeeding time, directly after, following in time, later, later in time, retroactive, thereafter
Associated concepts: ex post facto law

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.

References in periodicals archive ?
The Union Cabinet chaired by the Prime Minister Shri Narendra Modi, has given its ex-post facto approval to the capital infusion of Rs.
iii) Ex-post facto sanction to the excess exported edible oils in branded consumer packs of up to 5 kgs.
The Union Cabinet chaired by the Prime Minister Shri Narendra Modi has given its ex-post facto approval for signing of a Memorandum of Understanding (MoU) between India and United Kingdom of Great Britain and Northern Ireland on cooperation in the energy sector.
The Cabinet considered and gave its ex-post facto approval for start of negotiations and signing of Memorandum of Understanding (MoU) on the cooperation of developing "China-Pakistan Economic Corridor" long-term plan and action plan between China's National Development and Reform Commission and the Ministry of Planning and Development of Pakistan.
The syndicate body awarded ex-post facto approval to the hiring of private security guards and purchase of tractor trolley for the university.