How police corruption remains a tainted reminder of police brutality in the US.

Police officers-(the blue knights) entrusted and empowered to enforce the law-can become some of the most aggressive criminals themselves. Learning how much corruption there is and understanding its characteristics are both basic yet crucial steps toward successful corruption control. Accurate information is necessary to diagnose the extent and nature of the corruption problem, trace the changes in its volume and patterns over time, determine the causes of corrupt behavior, learn about the susceptibility of …

…the applicable control methods, as well as in providing a more precise measure of their success than the simple absence of a subsequent scandal. Whether this information will be collected at all and how it will be used depends upon the citizens, city officials, and police administrators. If the citizens perceive police officers to be corrupt and continue to give them a positive report, the public implicitly chooses to maintain an environment tolerant of corruption.