I may be wrong (I often am) but I have the impression that some law enforcement officials believe that criminals actually use certain kinds of guns. That is, there are "good guns" and there are "bad guns." That's where the Saturday night special idea comes from. I think I recall a quote referring to a Colt Detective Special where a policeman said they are never involved in shootings. True or not, such photos I've seen of police firearms rooms suggest that all kinds of handguns are used in crime, even including stag handled single actions.
Even if we can't do anything to keep the bad guys from getting their hands on guns (even stag handled ones), perhaps we could do something about good people shooting one another. Then perhaps we could do something about people ignoring the speed limit. Do you suppose raising the speed limit is the answer?
Shoot low, sheriff. They're riding Shetlands!
Underneath the starry flag, civilize 'em with a Krag,
and return us to our own beloved homes!
Buy War Bonds.