Not unexpected I fear, the opening passage from a NYT report:
A Brazilian police officer who spoke at a technology conference in New York on Tuesday about the potential of a new smartphone app to aid in the “pacification” of Rio de Janeiro’s lawless favelas was indicted the same day by prosecutors back home in connection with a notorious case of torture and murder by her unit in July.
Link:http://thelede.blogs.nytimes.com/201...new-york/?_r=0

The lady officer did return home. Yes being a police officer in such places is very hard, torture is not the response.

I had not realised the pacification effort was partly privately funded:
In August, the embattled Brazilian business tycoon Eike Batista — whose annual contributions of nearly $10 million had paid for U.P.P. equipment, uniforms, weapons, ammunition and training — withdrew his financial support for the project.