Freakinoldguy Freakinoldguy:
Using your vehicle door to take out a perp is effective but highly unethical.

But what I'd be more interested in is why his cellie beat the shit out of him and why the custodians let it happen?
The custodian in this case might be some 70 year old lady. Our neighbour woman was the local one here for many years. Probably one cell used 99% as the drunk tank.