Cedric Ryngaert

Ryngaert's research examines the law of jurisdiction, with particular attention on pathways that lead to sustainability, institutions for open societies, and security in open societies (SOS). He authored a book entitled Jurisdiction in International Law in 2015 about the areas of law where jurisdiction is most contentious: criminal, antitrust, securities, discovery, and international humanitarian and human rights law. Michael Waibel is of the view that the book "holds out a utopian benchmark where States exercise jurisdiction solely in the interest of furthering global welfare, based on specific jurisdictional rules for each field of law." He further describes the book to be a "comprehensive analysis" of the admissible geographical reach of State legislative power, which highlights "transatlantic jurisdictional wrangles" that are limited to US and European State practice.

His work also examines the position of non-state actors as law-makers and law-takers in the context of international law. He addresses questions about whether these different positions can or should be separated from each other. In 2015, Ryngaert co-edited the book, Non-State Actors in International Law, with Math Noortmann. The book highlights that the position of non-state actors in international law changes with the functional and theoretical perspectives of the observer. Marcos D Kotlik described the book as being focused on "constraints of state-centric approaches in accurately depicting the role and status of non-state actors in the international arena." More recently, Ryngaert authored a book, Selfless Intervention: Exercising Jurisdiction in the Common Interest, and explored several concepts of international law, such as jurisdiction, sovereignty, and territoriality. He investigated the ways in which purpose of the law of jurisdiction undergoes a shift from protecting national interests to furthering international concerns.

Ryngaert also held administrative appointments in his career. He was a faculty member of the research board and doctoral commission at Leuven University until 2014. At Utrecht University, he has been appointed as Head of the Department of International and European Law since 2018.

Following his Doctoral degree, Ryngaert held appointment as assistant professor of Public International Law at Utrecht University. He was promoted to associate professor in 2011, and became Professor in 2014. During his tenure at Utrecht University, he was also concurrently appointed by Leuven University as Assistant and later associate professor of Public International Law from 2008 until 2014.

Ryngaert has published over 300 papers, and book chapters on topics related to the role of international law in the context of domestic courts, sanctions, and international responsibility. He is the author/co-author of 2 books, entitled Jurisdiction in International Law, and Selfless Intervention: The Exercise of Jurisdiction in the Common Interest, and the co-editor of International Prosecutors, and Non-State Actors in International Law. He is the Editor-in-Chief of the Netherlands International Law Review, and the Utrecht Law Review, and serves as a member of the Advisory Committee on Public International Law, advising the Dutch Ministry of Foreign Affairs. From 2008 until 2017, he was a Member of the Board of Human Rights and International Legal Discourse.

Ryngaert was born on 22 August 1978 in Kortrijk, Belgium. He attended Leuven University, from which he earned his Master in Law in 2001, and then completed his Doctoral degree in law, under the supervision of Jan Wouters, in 2007.