Article 241 of the Criminal Procedure Law: The parties, their legal representatives and close relatives may appeal to the people's court or the people's procuratorate against the legally effective judgment or ruling, but the execution of the judgment or ruling cannot be suspended.
Article 242nd The people's court shall retry the appeal of the parties, their legal representatives or close relatives in any of the following circumstances:
(a) there is new evidence to prove that the facts identified in the original judgment or ruling are indeed wrong, which may affect conviction and sentencing;
(2) The evidence on which conviction and sentencing are based is inaccurate and insufficient, which should be excluded according to law, or there are contradictions between the main evidences proving the facts of the case;
(3) The application of the law in the original judgment or ruling is indeed wrong;
(four) in violation of legal procedures, which may affect the fair trial;
(5) The judicial officers commit acts of corruption, bribery, favoritism and malpractice, and perverting the law.