John Heieck

John Heieck

John Heieck holds an LLM in Public International Law from Leiden University and a PhD in Law from the University of Kent. He is the author of A Duty to Prevent Genocide: Due Diligence Obligations among the P5 (Edward Elgar 2018), which was the first standalone monograph on the duty to prevent genocide, and which posited that the duty to prevent’s concomitant due diligence obligations imposed a duty not to veto on the permanent five members of the UN Security Council (P5) when faced with an imminent or ongoing genocide. In reaching this conclusion, the book also defined a three-part test by which jus cogens norms may be identified, an exercise which is sadly lacking in the legal scholarship. John has followed up A Duty to Prevent Genocide with numerous blog posts on the prevention of mass atrocities (here on Opinio Juris), while branching out on topics more readily applicable to his practice as a criminal defense attorney, such as the encyclopedia entry he co-authored with Kevin Jon Heller on ‘Mistrial: International Criminal Courts and Tribunals’ for the Max Planck Encyclopedia for International Procedural Law (Oxford University Press 2020).

As part of his duties as the Deputy Managing Editor of Opinio Juris, John manages the ‘Events and Announcements’ page for the blog. So if you have announcements, events, calls for papers, conferences, workshops, summer schools, jobs, etc., that you would like to announce on the blog, please don’t hesitate to contact John at eventsandannouncements[at]gmail[dot]com. Thank you!