I may well merge the two bullying threads.
But the incident I referenced in the other thread involving a fight on a bus and a camera. I nearly got thrown out of school over it, after having gotten caught defending myself enough times that I was considered a problem. I'd be more likely to doubt myself if I hadn't had one of my friends in detention as often as I was with me, as he knew plenty well when not to back my ass. The only reason I wasn't prior to that fight was my mother threatening legal action, only reason I wasn't after that fight was, despite the administration's reaction, my fucking bus driver brought up the video and proved that I was defending myself. And once you get a few people nearly expelled people leave you alone a bit, and oddly enough after the people who regularly attacked me were suddenly gone my own record became far better.
The administration was entirely happy to use an incident involving 3 high schoolers, and 1 middle schooler to kick the middle schooler out. Until someone pointed out they had evidence they should bother looking at.
I'll definitely agree there are problems with some of the administrations over things like this. But I haven't seen as much of that particular problem in other school systems. At the same time, there are some things which simply don't enough evidence to be properly dealt with and other that don't really fall under a crime unless we criminalize being a prick.