Weegy: Double jeopardy is a procedural defence that forbids a defendant from being tried again on the same (or similar) charges following a legitimate acquittal or conviction. [ In common law countries, a defendant may enter a peremptory plea of autrefois acquit or autrefois convict (autrefois means "in the past" in French), meaning the defendant has been acquitted or convicted of the same offence ] (More)