I have this chopper flying directly over my city for hours after midnight (checked flightaware and it's a police chopper).
Flew for 2,5h yesterday in circles (pic related), will fly likely the same duration today.
The whole city vibrates with the sound from the helicopter, it is no coincidence, I would easily attribute this shit to some MK ultra tactic if things are going too well in the city, they try to disturb the order or peace, so that people can't sleep or wake up poorly rested.
There are no crimes in the city, the police hasn't added any info about them searching for anyone, they just pick a time when people are expected to sleep to fly their helicopter for hours to act like pigs.