Yes, but this _nothing to do_ with the issue of military police preemptively sniping people in slums. The drop in death rates is associated with 'peace treatie

Yes, but this _nothing to do_ with the issue of military police preemptively sniping people in slums. The drop in death rates is associated with 'peace treaties' between large criminal factions in peripheral states such as Rio Grande do Sul and, most importantly, Ceará. These factions have recently spread across Brazil (last decade and a half or so) and most recently, concurrently with the economical crisis of 2014~onwards, have been waging open war. The article you linked even says: > The drop in lethal violence started well before the election of the self-styled crime-fighter-in-chief, President Jair Bolsonaro, who was elected in October 2018. Rio's governor (who enacted the sniping) was elected along with Bolsonaro.