Do I need to go to the public security bureau to sign the case in person?

You don't need to sign in person at the Public Security Bureau to close the case. in cases where investigation is terminated, the public security organs generally do not require the signature of the criminal suspect or other relevant personnel. At the end of the investigation, the public security organs need to ensure that the criminal facts have been ascertained and the evidence is true and sufficient. After that, the public security organ will make a prosecution opinion and transfer the case file materials and evidence to the people's procuratorate at the same level for examination and decision. In the process of transfer, the public security organ also needs to inform the suspect and his defense lawyer of the relevant situation, but this process does not require the signature of the suspect himself.

Procedures for closing the case:

1. Case investigation: The public security organ conducts a comprehensive investigation and evidence collection of the case;

2. Case review: According to the investigation results, the procuratorate or the public security organ will review the case;

3. Make a decision:

4. Inform the parties: notify the parties or their legal representatives of the decision to close the case in writing;

5. case filing: after all the closing procedures are completed, the case materials will be filed.

To sum up, it is not necessary for the public security bureau to sign the case. After the investigation stage, the public security organ will transfer the case file materials and evidence to the procuratorate for review and decision, and the process of notifying the suspect and his defense lawyer does not require the signature of the suspect to confirm.

Legal basis:

Article 165 of the People's Republic of China

The power of attorney shall be in written form, and the power of attorney shall specify the name of the principal, the name of the principal, the agency matters, the authority and the time limit, and shall be signed or sealed by the principal.

Article 22 of the Criminal Procedure Law of People's Republic of China (PRC)

If the sentence is pronounced in court, it shall be delivered to the party concerned and the people's procuratorate that initiated the public prosecution within five days; If a sentence is pronounced regularly, it shall be served on the parties concerned and the people's procuratorate that initiated the public prosecution immediately after the sentence is pronounced. The judgment shall be served on both the defender and the agent ad litem.