According to the provisions of Article 39 of China's Criminal Procedure Law, lawyers need to submit relevant procedures to meet the parties:
Including: lawyer's practice certificate, original and copy; The certificate of the law firm, a special letter of introduction issued by the law firm to meet the criminal suspect and defendant; The power of attorney for criminal defense, if it is legal aid, needs to issue a letter of legal aid. The client is usually a family member of the party concerned and needs to provide identity documents and proof of kinship. According to the provisions of the Criminal Procedure Law, as long as these procedures are met, lawyers can meet the parties at any time, regardless of the time and frequency of the meeting.
Legal basis: Article 37 of the Criminal Procedure Law of People's Republic of China (PRC), defenders put forward materials and opinions on the innocence, light crime or reduction or exemption of criminal responsibility of criminal suspects and defendants according to facts and laws, so as to safeguard the litigation rights and other legitimate rights and interests of criminal suspects and defendants.