Legal basis: People's Republic of China (PRC) Lawyers Law.
Article 31 When acting as a defender, a lawyer shall, according to facts and laws, put forward materials and opinions on acquittal, lighter punishment or reduction or exemption of criminal responsibility of criminal suspects and defendants, so as to protect the litigation rights and other legitimate rights and interests of criminal suspects and defendants.
Article 32 A client may refuse his entrusted lawyer to continue to defend him, and at the same time, he may entrust another lawyer as a defender. After accepting the entrustment, a lawyer shall not refuse to defend without justifiable reasons. However, if the entrusted matter is illegal, the client uses the services provided by the lawyer to engage in illegal activities, or the client deliberately conceals important facts related to the case, the lawyer has the right to refuse to defend.
Article 33 A lawyer who acts as a defender has the right to meet a criminal suspect or defendant who is detained or under residential surveillance with a lawyer's practice certificate, a law firm certificate, a power of attorney or a power of attorney for legal aid in accordance with the provisions of the Criminal Procedure Law. Defense lawyers are not monitored when meeting with criminal suspects and defendants.