The NYPD has been keeping tabs on certain neighborhoods. In an SS kinda way. Sometimes in New Jersey.
I consider this more a symptom of the flawed concept of police departments, rather than simply an indication of some form of racism. When you have a protection service (actually they aren’t obligated to protect) that is in fact a forcibly funded monopoly this is unsurprising. They will always tend towards less service for more money. Bloomberg, being a total statist will naturally defend it until it becomes better to find a scapegoat. He is after all a politician.