hey yinz...
i was googling to find some completely unrelated information and stumbled across this survey from 1997 of police officers in lehigh and north hampton counties:
http://www.tysknews.com/Depts/2nd_Am.../gun_study.htm
it was from a long time ago...and was only given to officers in two counties...and only had a 56% response rate...
so, i'm not sure it is really good for anything, but it is still interesting and i thought some of yinz might like to read it.
enjoy.