Legal basis: Criminal Procedure Law of People's Republic of China (PRC).
Article 33 A criminal suspect or defendant may, in addition to exercising the right of defense, entrust one or two persons as defenders. The following persons may be entrusted as defenders:
(1) lawyers;
(2) A person recommended by a people's organization or the unit to which the criminal suspect or defendant belongs;
(3) Guardians, relatives and friends of criminal suspects and defendants.
A person who has been sentenced to punishment according to law or deprived of or restricted personal freedom shall not act as a defender.
A person who has been dismissed from public office or has his lawyer's or notary's practice certificate revoked may not act as a defender, except the guardian or near relative of the criminal suspect or defendant.
Article 97 A criminal suspect or defendant, his legal representative, close relatives or defenders have the right to apply for changing compulsory measures. The people's courts, people's procuratorates and public security organs shall make a decision within three days after receiving the application; If it disagrees with the change of compulsory measures, it shall inform the applicant and explain the reasons for disagreement.