Cops are just like anyone else. Some are ok, some are cool as shit and others are assholes. When some people get a little power they abuse it. But not all are like that, although there are quite a few.
Growing up 3 of my neighbors were cops and they were cool.
2 girls I dated had fathers that were cops, they were cool. Most of you guys know you never know what to expect when meeting a girls dad. Half of them hate you before they even meet you because no one is good enough for his little girl.
I worked as a bouncer when I was in college and I had to deal with many cops. A lot were dicks... but a lot cool too. About half and half... but shit that's about how life is. You are going to meet a lot of assholes. Half the people I've worked with were assholes. At least half my neighbors are assholes. Shit, half the stoners I've met are assholes. I guess it can apply parents too... my mom was cool as shit... my father is a dickhead... lol.

I think the real problem is in the court system.