The materials prepared by the plaintiff's lawyer before the trial are: 1. The complaint, including the identity information of the original defendant, the claim and the factual reasons; 2. If the plaintiff is a natural person, provide the original ID card; 3. Power of attorney, my professional certificate and evidence to prove the facts of the case.
Legal objectivity:
Article 139 of the Civil Procedure Law, the parties may present new evidence in court. With the permission of the court, the parties may ask questions to witnesses, expert witnesses and inspectors. If a party requests a new investigation, appraisal or inspection, the people's court shall decide whether to grant it or not. Article 120 A complaint shall be submitted to the people's court, and copies shall be submitted according to the number of defendants. If it is really difficult to write a complaint, it can be made orally, which will be recorded by the people's court and the other party will be informed.