Does the police station need the signature of both parties to file a case?

Legal analysis: specific analysis of specific circumstances. If it is a civil case, both parties should sign it. If it is a criminal case, the whole case still needs to be carried out according to the procedure after signing.

Legal basis: Article 261 of the Procedures for Handling Criminal Cases by Public Security Organs. Investigators investigating a case that has been closed shall make a closing report.

The closing report shall include the following contents:

(1) Basic information about the criminal suspect;

(two) whether compulsory measures have been taken and the reasons;

(3) The facts and evidence of the case;

(4) Legal basis and handling opinions.