Your parent comment has nothing to do with the behavior that got Prenda sanctioned, which was representing themselves to the court as a third-party law firm retained by the copyright owner when in fact they were the first-party copyright owner themselves.

I have never understood why anyone viewed what happened to Prenda as a victory against copyright trolling. Prenda was a group that engaged in blatant, abusive copyright trolling, yes. And the official opinion of the legal system is that that was fine, and other people should keep doing it.

Fair enough, I think the collusive part would be a vulnerability in the strategy. But even so, Fair Use is still in play.

I imagine the legal fallout from this would be very bad for the police department itself. Communications about this scheme would be public records.