"Someone without an arrest may simply be a person who has never gotten caught." That argument is like a religious apologetic. Lack of evidence doesn't produce

"Someone without an arrest may simply be a person who has never gotten caught." That argument is like a religious apologetic. Lack of evidence doesn't produce a positive argument for anything. On the other hand past criminal behavior is one of the best predictors of future criminal behavior. I completely agree with your own statement though.