Thats pretty crazy, I'm glad that kid got it on tape. If I was in that situation I wouldn't tell him anything. These people give a bad name to police most police are nice but sometimes that badge goes to there head.
I remember seeing this a while a go..but that is such crap to treat the kid like that....but at the end did you hear the cop say something like...Is that camera running? If i find myself....i bet he said something about the internet lol