Legal analysis: With the case acceptance notice, the lawyer can obtain the other party’s personal household registration information. Lawyers have the right to investigate and collect evidence on their own, and only need "two pieces of evidence." When meeting with a criminal suspect or defendant, you must have the "three certificates" (lawyer practicing certificate, law firm certificate, power of attorney or legal aid letter). However, although the law has clear provisions, it is generally difficult for lawyers to obtain evidence on their own, and defendants are often unwilling to cooperate. If a criminal case is involved, the attorney may act at his or her own risk.
Legal basis: Article 67 of the Civil Procedure Law of the People's Republic of China. The People's Court has the right to investigate and collect evidence from relevant units and individuals, and relevant units and individuals may not refuse. The People's Court shall identify the authenticity of certification documents submitted by relevant units and individuals, and examine and determine their validity.