If you feel that your new neighbor is a bit suspicious, then don’t take any bad assumption toward that new guy first. It’s not a good idea to think badly about the new people in the area just because of we don’t know him yet. Actually, there’s a very good way to check out someone’s criminal record by using the data from his vehicle’s license plate. Just use the license plate search on the internet, and you will be able to know the owner’s criminal records.
This allows you to know whether it’s safe or not to live with a person with many criminal histories. Although he may have stopped doing it, at the very least you will be able to keep your guard up anytime you’re close to him. On the other hand, by also knowing that he is actually not having any criminal record, you will feel safer by knowing that it’s all in your head.