There are many criminals out walking around who've never been caught an/or charged and/or convicted. For example, Ole Larsen, former CO And prison superintendent, current parole board and school board member. He shot a guy--endangering the general public in the process--got away with it because of who he knows and the fact that the man he shot has a record. Plenty of politicians commit criminal acts. The police regularly lie in reports and commit perjury. 
Then there are people who are innocent, but have been charged with a crime and are treated as though they're guilty.  They're not criminals but are treated like they are.