I mean, it's not a very interesting research topic? People who are poor and young commit certain categories of crime more often. That has nothing to do with immigration or race or whatever.
otherwise, misrepresentations of issues (like the parents) would be over-represented publicly and not refuted.
(which is important, because tackling crime is only possible if you understand the actual causes themselves.)
You can commission as many studies as you like on astrology, and they'll all be meaningless.