They did nothing of the sort.
They didn't preserve the evidence, they didn't drug test Zimmerman at the time. They didn't do an autopsy of Trayvon that was very thorough. (I mean, shit, it was actually pathetic to watch that medical examiner, who didn't speak English very well and had no idea which autopsy he was even talking about.)
Showing your ignorance again, Joe? You already demonstrated that you don't know the law, and don't understand the judicial process. Your understanding of police procedure and autopsies is no better, and you come across like a typical liberal blowhard, making all sorts of wild accusations that have little to no basis in the facts of this instance. All because the system did not produce the result you wanted. Same with your accusation that "most white people are racist". All you know is from your own, (apparently quite limited), experience,and liberal talking points. That no more makes you an expert on racism, than watching TV shows makes you an expert on police investigative procedure, autopsies, the law, or criminal judicial process. You made up your mind on this case, before you even took a look at all the evidence. I KNOW THAT, because you have made repeated allegations here which are contradicted by that evidence.
THis case is not, and never has been, about race, except to the extent that a sensationalist media, and your political side, injected race into it, the former for ratings, and the latter out of an emotional need have its agenda validated.. The truth is, that not all interracial violence is racially motivated; some of it is; most of it in fact probably is NOT, emotionally loaded claims from both sides notwithstanding. Most such incidents result from moments of anger, adolescent immaturity, or just plain criminal intent, without any clear racial motive. Of course, that gets lost in the noise, in a society where race has become a rallying cry for political opportunism on both ends of the spectrum. Yes, some people are racists; they come in every color. but in most people of any race, there's a lot less actual racism, and a lot more suspicion of racism in others. Both ends of the political spectrum pander pretty shamelessly to those suspicions, and the rest of peoples' worst instincts, because it works. It IS a good way to whip up passions; but that doesn't make it the truth.