Usage patterns
〈事〉の公判が開かれるa public trial (for a case) is held
The public trial for the murder case will be held next week.
公判に出廷するto appear in court for the trial
The defendant appeared in court for the trial.
公判で〈事〉を証言するto testify about something at the trial
The witness testified about the circumstances of the case at the trial.
公判が結審するthe trial proceedings conclude
The long trial finally concluded.