legal ground
Article 28 of the Lawyers Law of People's Republic of China (PRC)
Lawyers can engage in the following businesses:
(two) to accept the entrustment of the parties in civil cases and administrative cases, to act as agents and to participate in litigation;
(3) Accepting the entrustment of criminal suspects and defendants in criminal cases or legal aid agencies to act as defenders according to law, accepting the entrustment of private prosecutors in private prosecution cases, victims in public prosecution cases or their close relatives to participate in litigation as agents;
(four) to accept the entrustment and represent the complaints of various litigation cases.
Article 29
Lawyers, as legal advisers, should provide advice to clients on relevant legal issues, draft and review legal documents, participate in litigation, mediation or arbitration activities as agents, handle other entrusted legal affairs and safeguard the legitimate rights and interests of clients.