The Corruption Eradication Commission (KPK; Komisi Pemberantasan Korupsi) was a specially-designed institution due to the failures of conventional institutions (public prosecutor and the police) in the eradication of corruption. Such considerations demanded that KPK was not intended to be a temporary institution. In such position, this article explicates basic arguments and legitimacy of the formation of KPK investigators. By law, a series of Laws open the chances or possibilities of non-police investigators. This means that as an institution authorized to conduct investigation, the KPK bears the right to recruit its own investigators.