Police officer John Flinn of Gloucester Township, NJ has been charged with simple assault for hitting a 13-year-old girl twice in the head while handcuffing her.
From NJ.com:
John Flinn, 27, and other officers were dispatched to investigate a disturbance on March 8 and encountered the girl. Flinn can be seen hitting the girl twice on the side of her face in footage from a responding officer's body-worn camera. The prosecutor's office said the girl was struck while complying with police instructions.
Criminal charges were never filed with the girl.