In the case of causing trouble, whether to hire a lawyer is the right of the actor. If a crime is constituted, the actor may entrust a lawyer as a defender.
In criminal cases, the responsibilities of defenders are mainly:
1, according to the facts and laws, put forward the materials and opinions that the criminal suspect and defendant are innocent, the crime is light or their criminal responsibility is reduced or exempted;
2. Protect the litigation rights and other legitimate rights and interests of criminal suspects and defendants.
Legal objectivity:
Criminal procedure law
Article 33
A criminal suspect or defendant may entrust one or two persons as defenders in addition to exercising their right of defense. 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.