Proceeding of International Conference on The Law Development For Public Welfare ISSN 2798-9313 Volume 1, 2021: 1st PROCEEDING : Constitutional Protection Of Citizens In The Health Sector Semarang, July 2021 159 Position & Authority Of Corruption Eradication Commission In Indonesian Constitutional System Before & After The Second Amendment Of Corruption Law Doni Cakra Gumilar *) , Sri Endah Wahyuningsih **) and Jawade Hafidz ***) *) Advocate at Law Office Doni Cakra Gumilar, SH & Partners, E-mail: tjakragumilar86@gmail.com **) Faculty of Law, Universitas Islam Sultan Agung (Unissula) Semarang ***) Faculty of Law, Universitas Islam Sultan Agung (Unissula) Semarang Abstract The purpose of this study is to find out what is the position and authority of the Corruption Eradication Commission in the Indonesian constitutional system after the second amendment to the Corruption Eradication Commission Law. The research method used is normative juridical. The conclusion of this study is that the position of the Corruption Eradication Commission in the Indonesian constitutional system after the second amendment to the Corruption Eradication Commission Law is in the executive family and the change in the authority of the Corruption Eradication Commission in the Indonesian constitutional system after the second amendment to the Corruption Eradication Commission Law, namely the establishment and the authority of the Supervisory Board of the Corruption Eradication Commission and its powers issue an Investigation Termination Order (SP3). Keyword: Corruption; Eradication; Commission; Position; Authority. 1. Introduction The Corruption Eradication Commission (KPK) is a state institution specifically formed to eradicate corruption as regulated in Act No. 30 of 2002 concerning the Eradication of Corruption Crimes. In consideration Act No. 30 of 2002 explains that: The establishment of the Corruption Eradication Commission (KPK) is due to the fact that the eradication of corruption that has occurred until now has not been carried out optimally and government institutions that handle corruption cases have not functioned effectively and efficiently. Whereas corruption in Indonesia is widespread and carried out systematically, it is a violation of the social and economic rights of the community. The consequences of corruption not only bring disaster to the national economy, but also to the life of the nation and state so that corruption can no longer be classified as an ordinary crime but has become an extraordinary crime. Likewise, in efforts to eradicate it, it can no longer be carried out in an ordinary way, but in extraordinary ways. 1 Along with its development, since the establishment of the Corruption Eradication Commission (KPK) in 2002 until now, the problem of corruption in 1 Adib Bahari dan Khotibul Umam, 2009, Komisi Pemberantasan Korupsi dari A sampai Z, Pustaka Yustisia, Yogyakarta, p. 26.