Here is an analysis of a variety of guns taken from criminals at one police department:
http://www.buckeyefirearms.org/node/8579
Very interesting!
<25% of the guns were “cheap handguns.”
But 2/3 of them were less than fully functional!
Mix in the probable less than full functionality of the criminal shooter, and they’re not nearly as dangerous to an armed and alert opponent as we tend to think they are.