The entrusted agent for prosecution is not necessarily a lawyer. In civil cases, except for those who have no capacity for civil conduct, those with limited capacity for civil conduct, those who may harm the interests of the principal, and those who the people's court considers unsuitable to act as agents ad litem, agents may be entrusted. The entrusted agent of a criminal case may be a lawyer; A person recommended by a people's organization or the unit where the criminal suspect or defendant belongs; Guardians, relatives and friends of criminal suspects and defendants.