JNo, strangely I do watch the news, here in Brazil, and I don't have my head in the sand, or anywhere else for that matter.
I didn't claim that this country is free of crime, but you stated that the police round up and execute 30 people every night in São Paulo with impunity. Last time I looked Rio de Janeiro was a different city. Now you are quoting 10 year old statistics to show your "local" knowledge.
Your links cover three recent cases, all of which have seen the guilty officers arrested, a prison riot where inmates killed inmates and Carandiru, which is from 1992 and was very much down to the state government at the time.
As for your Private Eye quote, wrong as usual. It wasn't a police crackdown, it was corrupt cops fighting for control of drugs, in Rio de Janeiro, not São Paulo.
It's not quite what you said in your original post is it?
It's amazing what you can discover if you spend a little more than 5 minutes searching, like facts maybe. But why spoil a good rant with facts?