There really are two very distinct approaches to handling urban policing. One is the Rudy Guliani zero tolerance, aggressive stop and frisk, prosecute quality of life crimes approach. It lead to NYC going from being among the most dangerous to among the safest of big cities.
The other is typified by the DiBlasio approach of minimizing police interaction and confrontations with residents and extreme tolerance for low level violations. It leads to this:

The other is typified by the DiBlasio approach of minimizing police interaction and confrontations with residents and extreme tolerance for low level violations. It leads to this:
