I guess Brazil is a single nation measuring success against urban crime in killed and wounded, not arrests and charges.
Police and military are moving tanks&air support to fight street gangs and they are actually losing aircraft over ghettos.
In Sao Paolo wealthy people are travelling by choppers from their homes in gated communities to helipads on skyscrapers they are working in.
Wait, wasn’t there a movie about that scenario recently?
I read about a 'compound' of 30,000 (a little city actually) that is enclosed in walls that are patrolled by a 1,200 member private security force. (they work for and are paid by the residents).
You must have a residence pass or a special type of security pass for service workers.
All non-residents are subject to a complete search on entering and departing.
It is mostly White but not exclusively so....it appears to be a separation by class and economics.