If you live in the US, chances are that you will cross path with criminals and ex-criminals often, with or without knowing it. This is because there are millions of them around. Criminal reports on television and the newspaper can give a better explanation why people are now concerned about their safety. Usual suspects were identified to be some relatives, a co-worker, or even a close friend you thought you know so well. It is also well-known that a great many of the criminal violations would be committed by repeat offenders. That?s why it?s important that we have the means to check whenever we smell a rat about someone.