The "Regulations on the Procedures of Public Security Organs Handling Criminal Cases" stipulates? When carrying out detention, you must show your detention certificate, and order the detainee to sign the detention certificate and press his fingerprint. If the detainee refuses to sign or fingerprint, the investigator should indicate it.

Public security administration punishment law? Article 102 If the punished person refuses to accept the decision on administrative punishment for public security, he may apply for administrative reconsideration or bring an administrative lawsuit according to law.

As for the problem you mentioned, even if you refuse to sign a visa, it will not affect your punishment. You can apply for administrative reconsideration or bring an administrative lawsuit in time according to law. As for the people and things you exposed, you can continue to sue through legal procedures. I believe that the truth will come out sometime. ?