I can confirm first-hand that Facebook will reveal your private messages to the police when an "emergency" is declared, without needing a warrant and without verification of the grounds for the request. I don't use Facebook anymore, and I don't touch any of Meta's services.
https://www.facebook.com/records
I can confirm first-hand that Facebook will reveal your private messages to the police when an "emergency" is declared, without needing a warrant and without verification of the grounds for the request. I don't use Facebook anymore, and I don't touch any of Meta's services.