A Dedicated, Persistent and Heliotropic lawyer who is very experienced in the field of mining and land litigation and non-litigation, especially in the Eastern Indonesia region. Halwan studied Law at Hasanudin University and then continued his Master of Laws and Doctor of Philosophy at Gadjah Mada University. Apart from being active in events, Halwan is also active in teaching at Bosowa University, South Sulawesi where he teaches several courses such as Tax Law, Regional Government Law, State Administrative Law, Constitutional Law, State Science, Drafting Legislation, Constitutional Law.