Legal basis: "China people * * * * Article 39 of the Criminal Procedure Law of the State, defense lawyers can meet and correspond with criminal suspects and defendants in custody. Other defenders, with the approval of the people's court or the people's procuratorate, may also meet and correspond with criminal suspects and defendants in custody. If the defender holds a lawyer's practice certificate, a law firm's certificate and power of attorney, and a letter of legal aid, the detention center shall arrange the meeting in time, and the meeting time shall not exceed 48 hours at the latest. In the case of crimes endangering national security and terrorist activities, if a defense lawyer meets a criminal suspect in custody during the investigation, he shall obtain permission from the investigation organ. The investigation organ shall notify the detention center in advance in the above circumstances. When a defense lawyer meets a criminal suspect or defendant in custody, he can ask the criminal suspect or defendant for information about the case, provide legal advice, and verify relevant evidence from the date when the case is transferred for examination and prosecution. Defense lawyers are not monitored when they meet criminal suspects and defendants. The provisions of paragraphs 1, 3 and 4 shall apply to defense lawyers who meet and correspond with criminal suspects and defendants during residential surveillance.