1. When the visitor's behavior is about to cause great harm to himself, it is not necessary to keep secret at this time, and the family members or other relevant personnel should be informed in time to take preventive and protective measures to avoid the tragedy.
There is no need to keep secret when the visitor's behavior is about to cause harm or destructive influence to others or other things. Relevant personnel shall be notified in time and appropriate protective measures shall be taken.
3. When the public security organs, procuratorial organs, courts and state security departments need to know about the visitors, they can cooperate with the investigation or evidence collection within the scope permitted by law.