Article 253 of the Criminal Procedure Law stipulates that the people's court shall retry the appeal of the parties, their legal representatives and 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.
legal ground
Article 37 of the Criminal Procedure Law: A defense lawyer may meet and correspond with a criminal suspect or defendant in custody. Other defenders, with the permission of the people's courts and people's procuratorates, may also meet and correspond with criminal suspects and defendants in custody.
If a defense lawyer holds a lawyer's practice certificate, a law firm's certificate, a power of attorney or a letter of legal aid to ask for a meeting with the criminal suspect or defendant in custody, the detention center shall arrange the meeting in time, which shall not exceed 48 hours at the latest.