Look up Sean Bell - not a stop a frisk, just an open fire.

Once, my wife and I were stopped, but not frisked, and cited for riding bikes, on a sidewalk at 2AM on a stretch of Atlantic Ave that would kill you to ride on. It made no sense, until I found out that my neighbor and his friend had been murdered at a street party. There was a drag net out trying to find the killer and they stopped anyone for anything.

A tough city.