That is from a new working paper by Corbacho, Philipp, & Ruiz-Vega (August 2012) which concludes:
Our results show that victims of crime are less likely to trust the local police. The probability of trusting the local police is roughly 10 percent lower among victims, a significant reduction from already low levels of trust in the local police in the region [Latin America]. The results are robust to the inclusion of additional control variables, to matching, and to moderate hidden biases. Our results further show that the impact of victimization on trust in the judiciary and trust in social and business networks are marginal at best.
The authors also report that crime is perceived as a more important problem than unemployment in Latin America.
HT: Maximo Rossi.