ex post facto
See also: expostfacto
English
Alternative forms
- expost facto
- expostfacto
Etymology
From Latin ex (“from”) + post (“after”) + facto, ablative of factum (“deed”). Post takes the accusative case. (See Wikipedia for a discussion of its grammatical form and usage).
Adjective
ex post facto (not comparable)
- Retroactive.
- (law) Formulated or enacted after some event, and then retroactively applied to it.
- 1998, Daniel E. Troy, Retroactive Legislation, page 56:
- Coupled with the Constitution's proscription of ex post facto laws is a similar prohibition against bills of attainder.
- 2009 March 21, Jim McTague, “Would a Tax on Bonuses Be Constitutional?”, in Barron's:
- That the tax would take effect after some of the payments were made also raises issues. Says former Attorney General Richard Thornburg, also in an e-mail: "Such legislation could well run afoul of constitutional restrictions on bills of attainder, ex post facto laws, laws impairing the obligations of contract, unauthorized takings of property and the like."
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- (law) Formulated or enacted after some event, and then retroactively applied to it.
Related terms
- ex post
Translations
retroactive
formulated or enacted after some event, then retroactively applied to it
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See also
