Definition of ex post facto
:after the fact :retroactively
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Ex post facto is Latin for "from a thing done afterward". Approval for a project that's given ex post facto—after the project already has been begun or completed—may just have been given in order to save face. An ex post facto law is one that declares someone's action to be criminal only after it was committed--a procedure forbidden by our Constitution.
Origin and Etymology of ex post facto
Late Latin, literally, from a thing done afterward
Definition of ex post facto
:done, made, or formulated after the fact :retroactive
- ex post facto approval
- ex post facto laws
First Known Use of ex post facto
1787
Law Dictionary
legal Definition of ex post facto
:after the fact :retroactively
- cannot judge ex post facto
Origin and Etymology of ex post facto
Late Latin, literally, from a thing done afterward
legal Definition of ex post facto
1
:done, made, or formulated after the fact :retroactive
2
:of or relating to an ex post facto law
- the chief concerns of the ex post facto ban
- —L. H. Tribe
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