alt Hacker NewsCPD generally does whatever NYPD does. The difference is that New York isn't Chicago. Different geography, different forces at work. Peter Moskos wrote a whole book about how NYPD turned things around in the 1990s, and "stop and frisk" and "broken windows", whatever Malcolm Gladwell wants you to believe, don't feature prominently in it.
Chicago had tried Chicago Alternative Policing Strategy (CAPS) in 90-s it was so famous that even I heard about it during my lessons on urban planning. In Russia.
And it was not entirely unsuccessful, but definitely much less effective than policing in NYC.
I read multiple articles from both conservative and progressive sources about the drop of crime in NYC. The evidence is decidedly mixed. "Broken windows" policies probably helped a lot during the 90-s but lost their efficacy by the early 2000-s. Stop-and-frisk probably reduced the rate of serious crimes, mostly through incidental arrests but undermined some of the community trust. It also was unconstitutional.