Meaning of autrefois convict in English:

autrefois convict

Pronunciation /ˌəʊtərfɔɪz kənˈvɪkt/

noun

Law
  • A special plea or defence that a defendant has previously been convicted of the same (or substantially the same) offence, and cannot therefore be retried for that offence. Compare autrefois acquit , "double jeopardy".

Origin

Mid 17th century. From Law French auterfoitz convict from Anglo-Norman and Middle French autrefois formerly, previously + convict.