I used to live next to a crack shack. The same police officers would show up every week to buy illegal drugs from a rather nice man who had questionable visitors who played loud music from their hoopties at all crazy hours of the night. This went on for several years. The same people would show up at the same time every day to buy drugs in the middle of the street in broad daylight like it was just something to do. At least 10 people lived in the house. The police knew, they didn’t care, and a few years ago the guy moved out with his entire extended “family”. It’s quiet now.