What responsibility does a lawyer bear to his client?

Legal analysis: 1. After accepting the entrustment, a lawyer shall not refuse to defend or represent 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 conceals the facts, the lawyer has the right to refuse to defend or represent him. 2. A lawyer may not act as an agent for both parties in the same case. 3. Lawyers shall not use the convenience of providing legal services to seek disputed rights and interests for their clients, and shall not accept the property of the other party. 4. Lawyers should keep state secrets and business secrets of the parties they know in their practice activities, and may not disclose the privacy of the parties.

Legal basis: People's Republic of China (PRC) Lawyers Law.

Article 28 A lawyer may engage in the following businesses: (1) Accepting the entrustment of a natural person, legal person or other organization to act as a legal adviser; (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; (five) to accept the entrustment and participate in mediation and arbitration activities; (6) Accepting entrustment to provide non-litigation legal services; (seven) to answer questions about the law and write litigation documents and other documents related to legal affairs.

Article 29 As a legal adviser, a lawyer shall, in accordance with the agreement, provide advice to the client on relevant legal issues, draft and review legal documents, participate in litigation, mediation or arbitration activities as an agent, handle other legal affairs entrusted, and safeguard the legitimate rights and interests of the client.

Article 30 A lawyer representing litigation legal affairs or non-litigation legal affairs shall safeguard the legitimate rights and interests of clients within the scope of entrustment.

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.