Autrefois acquit
In the
common law legal system, a plea of
autrefois acquit (
French for 'previously acquitted') the defendant claims to have been previously acquitted for the same offence, on substantially the same evidence, and that hence they cannot be tried again. A plea of autrefois acquit can be combined with a plea of not guilty. This plea is one of the
peremptory pleas. It is a term of
Law French.