5 ms·

I believe ex post facto in the US only applies to criminal cases. Retroactive civil regulations are not restricted (at least by the federal constitution). htt

• dredmorbius 2y ago
  Correct: In a legal context, ex post facto is most typically used to refer to a criminal statute that punishes actions retroactively, thereby criminalizing conduct that was legal when originally performed. Two clauses in the United States Constitution prohibit ex post facto laws: Article 1, § 9 --- This prohibits Congress from passing any laws which apply ex post facto. Article 1 § 10. --- This prohibits the states from passing any laws which apply ex post facto. <https://www.law.cornell.edu/wex/ex_post_facto https://www.law.cornell.edu/wex/ex_post_facto>