WTH...that is screwed up. A Ked's tennis shoe headed your way that might have hit your knee cap does not warrant a kick to the gut, a head slammed into the wall and two quick closed fisted punches to the back of the head. This is total BS. This cop knew he had the power and upper hand to act like an idiot. Shameful, this man does not need to have a weapon on his hip.
I know one can only take so much but I would hope that this person in such a position would know when to just close the door and lock it. Walk away and take a breather.