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.
As I visited the various neighborhoods in the campaign I learned fast that it's a mistake to think that all of the wisdom and possible solutions to our problems are available only in this building.