legal ground
Article 64 of the Civil Procedure Law of People's Republic of China (PRC)
The parties have the responsibility to provide evidence for their claims.
Article 119
Prosecution must meet the following conditions:
(1) The plaintiff is a citizen, legal person and other organization that has a direct interest in the case;
(2) Having a clear defendant;
(3) Having specific requests, facts and reasons;
(4) It falls within the scope of civil litigation accepted by the people's court and is under the jurisdiction of the sued people's court.
Article 120
The prosecution shall submit a complaint to the people's court, and submit copies according to the number of defendants.