Until a few years ago, New York City had a policy whereby if a police officer reasonably suspected someone of illegally carrying a gun, he could stop them and briefly frisk them for one. If he found one, and they didn’t have a carry permit, they were off to prison. Coupled with New York’s may-issue permit laws, and New York City’s extremely restricted issuance of them, this effectively reduced crime, by getting criminals put in prison, and making the ones still on the street wary of illegally carrying guns. But of course, now they’ve abandoned it because “racism”. I’d say the decision to abandon it failed, because of the spiking crime rates, but given that it was a practice that only caused more than minor inconvenience to criminals, what other purpose could thee have been in abolishing it?