Just because someone tells you an uncomfortable truth Dave

But it's not an uncomfortable truth, Al. It's not any sort of truth.

http://theconversation.com/immigration-and-crime-is-there-a-link-93521

Direct from the article

a large scale European study on the effects of immigration on crime concluded that while an increase in immigration generally does not affect crime levels, it does go hand-in-hand with increased public anxiety and anti-immigration stances.