The New Jersey branch of the American Civil Liberties Union has released an app that lets users secretly record police stops.
The "Police Tape" smartphone app will allow state residents to secretly record police during stops, protect the recordings from being deleted by unhappy officers and report the encounters to civil rights groups, the Star-Ledger reports.
The app's signature feature, according to the paper, is its ability to operate in "stealth mode" while recording. When users begin video recording, the screen goes black, as if the device is off. When audio is being recorded, the app automatically minimizes and disappears.