The dean's discovery procedure is initiated by the discussion and decision of the judicial Committee. If the presidents of the people's courts at all levels find that there are errors in the legally effective judgments, rulings and conciliation statements of their own courts and think that a retrial is necessary, they shall submit them to the judicial committee for discussion and decision. So you can send the complaint materials to the dean himself and start the dean's discovery procedure.
The initiation of the president's discovery procedure must be in the legally effective judgment of the presidents of people's courts at all levels, or during the trial. The president of the court found that the effective judgment was wrong, and there was no statute of limitations for retrial.