If that works so well to cut crime they should try one that bans guns on the premises. 
That reminded me of something that happened to a friend...
Several years back, during the Magic Muslim’s terms, my friend and his wife went out of town to visit family. I think somewhere near Atlanta. One night he and his wife had car trouble in an apparently heavily democrat neighborhood. He didn’t have his cellphone and his wife’s either didn’t have service or was dead (can’t remember which). He told her to stay in the car with the doors locked, and he’d walk to the store that wasn’t too far down the road to call someone.
Before I go any deeper, let me tell you about them. He is both a hunting ‘nut’ (to feed his family) and a gun ‘nut’ (to protect his family). The first Desert Eagle that I ever saw (and shot), that wasn’t in a movie, was his. He always had a razor sharp knife in a pendant type sheath hanging around his neck. He always had a .25 cal Beretta in one of his pants pockets. He always had a heavier hand gun either in his vehicle or on his person. I can’t remember what his wife used to carry in her purse, but after the Taurus Judge was released, he bought her one and she always had it in her purse.
Now, back to the story. His wife is in the car with her Judge and the windows up and doors locked. He’s walking through the poorly lit neighborhood to a store when he sees a group of young democrats moving toward him, but they don’t all walk straight toward him. They spread out and started closing in from the front and the sides. When the center guy in the front got close enough, he asked my friend what he was doing. My friend told him that he was going to the store to use a phone. While the center guy is talking, the guys on the sides are creeping closer. The center guy noticed my friend’s knife/necklace and asked if it was a knife. My friend said, “No. It’s a distraction.” When the center guy asked what he meant by “distraction”. My friend told him, “While you’re paying attention to the knife, you’re distracted from what I have in my hand.” As he said that, he pulled his hand out of his pocket holding whatever pistol that he had. He didn't point it at them or even threaten them, but when they saw it, that was all it took. They screamed, “He’s got a gun!” and ran off in different directions. He never saw them again.
I think of that story every time I see a Gun Free Zone sign (which is kind of rare around here) because the moral of the story, to me at least, is that simply having a gun prevented what could have been a serious crime. Of course, I’m sure the left would think that my friend should be prosecuted for preventing some fellow dems from committing crime.
