Legal aid refers to a legal guarantee system in which legal aid agencies set up by the government organize legal aid lawyers to provide free legal services to the parties in financial difficulties or special cases. Legal aid is free in principle, and the quality of handling cases will never be "discounted". Qingdao Municipal Bureau of Justice will supervise the quality of legal aid, adhere to the management principles of professional undertaking, whole-process tracking, centralized evaluation and performance-linked, and set up a legal aid lawyer group composed of 456 experienced lawyers.