I learned something kinda funny when I was first hired on at a local department in 2008, I asked the question of how LEO's looked at private citizens who concealed carry. The answers were "funny" as here in the Commie state of MD that is a whole other topic in itself but they gave state and regional statistics that concealed carry citizens were involved slightly less in unjustified shootings than police (on and off duty) and also that they committed less crimes than police (on and off duty).
Just a little tid-bit of info for this sunny afternoon.