Get the app Fi-Vo and call cops, use your phone/iDevice to record everything that happens in case they act as criminals rather than law enforcement. Don't let them threaten you for filming, just stay out of their way. There is no law anywhere that says you cannot film police while in public. No person in public spaces or public places or "public common areas" have the right to privacy. As such any government/state employee or building can be filmed if shot in a public space, public place, or a public common area. If your video stops, phone shuts off, or your lock screen comes up Fi-Vo automatically sends the video to a private server where law enforcement cannot touch it. Edit: auto correct