The program was created and implemented by State Public Security Secretary José Mariano Beltrame, with the backing of Rio Governor Sérgio Cabral.
But the expensive initiative expanded too far, too fast into dozens of favelas as state finances cratered, causing a devastating backslide that enabled gangs to recover some of their lost grip.
The favelas chosen for the UPP program have previously not paid for public utilities but would have to pay fees to whatever criminal organization controlled the area; this often leads to a recurrence of extortion and tax evasion.
Therefore, the concept for the UPP (which was given even more impetus once Rio was chosen to host the FIFA World Cup and the Summer Olympic Games) was finally put into action as a first-step solution to deal with the urban cycle of violence.
[7][9] Beltrame has stated however that he believes based on analysis of crime data that only gang leaders higher in the hierarchy could reestablish in other favela communities (without UPPs); and that lower level traffickers have a much harder time integrating into other geographic areas.
Previously, when police had attempted to encircle a favela to arrest and kill traffickers in surprise attacks, large-scale shootouts would ensue, and innocent residents were caught in the crossfire.
[12] Exemplifying this point, one of Rio's newspapers reported on 9 July 2012 that groups of criminals fired upon police in different locations within the Complexo do Alemão on the same day that military forces completed their final withdrawal from the area.
[14] Other results of the survey showed that people felt more free to discuss previously taboo topics such as street violence and illegal drug activity, but many are still intimidated to speak out, fearing that the UPP measure is only temporary.
[16] Journalists within Rio studying ballot results from the 2012 municipal elections observed that those living within favelas administered by UPPs distributed their votes among a wider spectrum of candidates compared to areas controlled by drug lords or other organized crime groups or gangs such as milícias.
At the time of the shooting, the female officer, 30-year-old Fabiana Aparecida de Souza, who had only been on the force a few months, was at a small UPP station within the favela, when the building was shot at by 12 assailants and she was hit in the abdomen by a rifle bullet.