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This paper examines two methods of investigating corruption within a public sector environment. The first is the law enforcement method where the investigation complies with accepted practices such as the right of silence and the prevention of self incrimination. The second is the use of coercive powers – where privilege, the right of self incrimination and the right of silence are removed. This removal is generally accompanied by some protection against using the material in criminal matters.
The paper explores the single agency model of corruption investigation where investigation, prevention, research and education are within the agency. It compares this model to a multiple agency model where an investigation or prevention/education functions link with other investigative agencies such as an Ombudsman, External Review Panel, an Auditor General or law enforcement agencies.
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