"Each week during the slowdown saw civilians report an estimated 43 fewer felony assaults, 40 fewer burglaries and 40 fewer acts of grand larceny. And this slight suppression of major crime rates actually continued for seven to 14 weeks after those drops in proactive policing — which led the researchers to estimate that overall, the slowdown resulted in about 2,100 fewer major-crimes complaints."
"“In their efforts to increase civilian compliance, certain policing tactics may inadvertently contribute to serious criminal activity,” the researchers wrote. “The implications for understanding policing in a democratic society should not be understated.”"
"“Our results imply not only that these tactics fail at their stated objective of reducing major legal violations, but also that the initial deployment of proactive policing can inspire additional crimes that later provide justification for further increasing police stops, summonses and so on,” the authors wrote."
I've lived in NYC since the mid-90s which was about the peak for crime so that's exactly what I'm commenting on. The police did some things better, but the dropping crime rates were not just local or even national, but global. No mayor or police chief can take credit for it. Similarly if you want to attribute the 2020 crime wave and recent ebb, it begins and ends with COVID-19. No humans involved at all.
.png){kind=link}
A good example of this is NYC around 2000. It worked.