Self-signed transcripts can be overturned. Withdrawal of confession refers to the act of a criminal suspect or defendant to overturn or change the original confession. Including confession denial and confession defense, the criminal suspect and defendant completely or partially overturn the original confessed criminal facts; Although the suspects and defendants do not deny the facts, they put forward some new excuses that can affect the establishment of the crime, and these excuses have actually led to the change of the original confession. Withdrawal of confession is the self-denial of the original confession by the criminal suspect and the defendant.

A person who is physically and mentally defective or young, can't distinguish right from wrong and can't express correctly, can't be a witness. The people's courts, people's procuratorates and public security organs shall ensure the safety of witnesses and their close relatives. Threatening, insulting, beating or retaliating against witnesses and their close relatives, which constitutes a crime, shall be investigated for criminal responsibility according to law; If it is not serious enough for criminal punishment, it shall be given administrative punishment for public security according to law.

Signed transcripts cannot be changed, and you can only apply for supplementary transcripts on the grounds that the previous transcripts are incomplete. For another transcript, the police will put two different transcripts together. If the second transcript is completely opposite to the last transcript, and there is no evidence to prove which one is closer to the truth, the relevant audit department will basically adopt the first transcript.

Legal basis:

Criminal Procedure Law of the People's Republic of China

Article 61

Witness testimony must be cross-examined and verified by the public prosecutor, the victim, the defendant and the defender in court before it can be used as the basis for finalizing the case. If the court finds that a witness intentionally perjures or conceals criminal evidence, it shall deal with it according to law.

Article 62

Anyone who knows the case has the obligation to testify. A person who is physically and mentally defective or young, can't distinguish right from wrong and can't express correctly, can't be a witness.

Procedures for handling administrative cases by public security organs

Article 77 The record of inquiry shall be checked by the person being questioned and read out to those who are unable to read. If there are errors or omissions in the record, the person questioned shall be allowed to correct or supplement it, and shall be required to press the handprint at the modified place.

After the interviewee confirms that the record is correct, he shall sign or fingerprint the inquiry record page by page. Refuse to sign and fingerprint, the people's police handling the case shall indicate it in the inquiry record.