Or are you referring to places where formerly charged/convicted persons live/hang out? Here I'd agree, punishment should end at the end of the sentence/fine and people deserve the benefit of the doubt/presumption of non-recidivism.
I'd also posit that many problematic areas are areas of a specific race and caution that a policy of under-policing these areas to avoid appearing racist will be disastrous to public safety and order.
Wherever you drive in America you will find drug abuse. But if you focus on any one area that leads to more arrests there, increasing their crime stats, leading to more policing, leading to more drug arrests, ...
https://www.hamiltonproject.org/charts/rates_of_drug_use_and...