ex post facto

• Término jurídico latino que significa 'después del hecho', utilizado para referirse a una ley o medida que modifica retroactivamente las consecuencias jurídicas de actos cometidos antes de su entrada en vigor.

A Latin legal term meaning 'after the fact,' used to describe a law or action that retroactively changes the legal consequences of acts committed before the law was enacted.

1. Retroactive effectC2formal

   Describing a law or action that applies to events that occurred before its enactment.

   Efecto retroactivo

   • The court ruled that the ex post facto law was unconstitutional.
   • Ex post facto legislation is prohibited in many legal systems.
   • The new regulation cannot be applied ex post facto to past transactions.