Late to the party. Kennesaw GA did it decades ago.
http://rense.com/general9/gunlaw.htm
I remember the Brady Bunch screaming that this would lead to “blood running in the streets!”
It didn’t.
Well, you do need to know that Kennesaw (now some 30,000 + people) did have 2 guns deaths since our law was passed in the 70’s.
One, a couple of out-of-towner’s in a Motel 8 by I-75 got in a fight, and the woman was killed. Neither was a residence of Kennesaw, so she was not able to defend herself, and his weapon was NOT affected by the Kennesaw gun law.
The second happened when a Kennesaw city cop was killed. On the job.
By a Marietta City cop.
In a police gun range.
Run by the City of Marietta.
I looked up the demographics for Kennesaw. It has a very “diverse” population.
The factor resulting in lower crime is that there is a consensus of acceptable behavior, and that standard is not “liberal”.