1. Of a person, to appear in a court of law and have the judge and jury listen to evidence about a crime and decide if the person is guilty. English = (be) on trial, (be) tried.
2. Of a person, to decide whether they are good or bad after you have thought about their character, behaviour, and life style. English = judge.
3. To relate to or be connected to the law. English = (be) legal.