Police in big cities go after big crimes like murders, but tend to ignore "lesser" crimes, so as a result, gangsters and other career criminals stick to those lesser crimes, and generally do a lot more of them.
People in this thread are specifically talking about violent crimes, not all crimes, which murder rate seems to be one of the good metrics to use, no?
/s lived in NYC for almost 40 years.
As to the ignoring crimes, here you go: https://www.cnn.com/2022/01/06/us/alvin-bragg-manhattan-dist...