That means getting the right racial balance, the right socio-economic balance, even the right personality, understanding of and attitude toward various types of crime appropriate for any given district.

The dehumanisation of street Police, no matter where they're from, into military style drones fighting "wars" on the front lines and allowed little room for nuance and subtlety only alienates the people in the long run, inevitably descending into "them and us" on both sides of the fence.

Cops get jaded and frustrated that no matter how many state-imposed beatdowns they hand out, no matter how many vans they fill with 'youths', no matter how many they leave in pools of blood and brain there is always an endless queue of the same "problems" in front of them... the people get jaded and frustrated that even though the local cops were educated at the local school their understanding and connection with the people pale in comparison to teachers and social workers to such an extent that they spend their days pushing at-risk kids further and further towards the "wrong side" of a "war" that's been invented for them.

The entire enterprise needs to be rebuilt from the ground up, globally with "Protect and Serve" truly at its core.

tl;dr Yes, but alone it would be nothing more than a sticking plaster.