Courses Taught
Representative Publications

Research Interests:

Office: 323 Malcolm Hall
Mail: College of Law, University of the Philippines, Diliman, Quezon City 1101
Tel: 920-5514

Associate Professor of Law


Professor Hilbay teaches Constitutional Law and Philosophy of Law, with emphasis on issues relating to Church and State, post-colonial constitutionalism, and the relationship between the information environment and legal consciousness. He has also taught Obligations & Contracts and Public Officers & Election Law. He is the editor in chief of the Philippine Law and Society Review. He served as the Solicitor General under the Administration of Benigno Aquino III.

His interest in public law is supplemented by experience in public institutions: he was law clerk to Supreme Court Justice Vicente Mendoza; an Associate Solicitor at the Office of the Solicitor General (on secondment, as assistant to Sol. Gen. Simeon Marcelo); and a consultant to the Commission on Elections.  He also serves as vice-chairman of Bantay Katarungan (Sentinels of Justice), a civic organization formed by Jovito R. Salonga to address issues of public injustice and oversee the appointments process in the judiciary.

He was a Fulbright Visiting Scholar at Boston College and finished his LL.M at Yale Law School.  He has also held fellowships at the Asian Law Institute at the National University of Singapore, Max Planck Institute for Comparative Public Law and International Law in Heidelberg, and Silliman University.

Professor Hilbay has published articles on constitutional theory, philosophy of adjudication, legal hermeneutics, the bar exams, the liberal consciousness, the print culture and the emergence of the discourse of rights, the institution of marriage, free speech, presidential immunity, and the problem of church and state. His theory on the Tort of Constitutional Negligence has been applied in suits for damages against former President Gloria Macapagal Arroyo. His collected works, Unplugging The Constitution, was published by the UP Press in 2009.



AB, Economics, University of Sto. Tomas, 1985
LLB, University of the Philippines, 1999
LLM, Yale Law School, 2005