I've got every respect for "good" cops. As to having no idea, I've worked for them as a consultant over a 35 year period, and along side them in emergency situations as an emergency services worker. I've seen the good, the bad and the ugly. I think its you that have no idea. Either that or you are incredibly naïve. When the cops break the law - there is no law. And when they beat up women, or pensioners, or kids - for any reason, I want them to be held accountable. Today its someone else, tomorrow its you.
