"Civil Procedure Law"
Article 199 of the parties to have been legally effective judgment, ruling, that there are errors, may apply to the people's court of the next level for retrial; the parties to a large number of parties or the parties to the case of the citizens of the two parties, can also apply for a retrial of the people's court of the original trial. Where the parties apply for a retrial, the execution of the judgment or ruling shall not be stayed.
Article 200: If the application of the parties meets one of the following circumstances, the people's court shall retry the case:
(3) The main evidence of the original judgment or ruling to determine the facts is forged;
(4) The main evidence of the original judgment or ruling to determine the facts has not been examined.