At the same time, if the parties want to know the specific situation of their friends, they can entrust a lawyer. According to Article 33 of the Lawyers Law, lawyers, as defenders, have the right to hold a lawyer's practicing certificate, a law firm certificate and a power of attorney or an official legal aid letter to meet with criminals who are in custody or under residential surveillance in accordance with the provisions of the Criminal Procedure Law. suspect, defendant. Defense lawyers meet with criminal suspects and defendants without residential surveillance.