In Brazil, a country that is rife with criminals due to the hot weather, corruption, and widespread poverty, there needs to be a police force that is equally as ferocious in order to keep up with the criminals. America has the reputation of shooting first and asking questions later, with many incidents of deadly force being questioned, and for good reason.
Brazil has no such thing, as the criminals themselves are quite brutal. There are many undercover cops who are willing to gun you down without prioritizing the safety of bystanders. This is why it’s risky to do these things in Brazil, as you never know who is an undercover cop, and they are all packing heat.