The most experience I had in the criminology field is playing a thug as an actor. That was my first paid job. The police academy at the college was paying people to reenact the calls that potential cops would get. So I got to play thugs and people who were unruly.
It was a fantastic learning experience and OK I got slammed because I wasn't Audrey Hepburn but you could have predicted that really if you'd opened your eyes wide enough.