Gabriel M. Lentner

About/Bio

Dr. Gabriel M. Lentner is Associate Professor of International Law at University of Continuing Krems, Austria and a TTLF Fellow at Stanford Law School. He holds a PhD in International Law from the University of Vienna School of Law, where he also serves as a Lecturer in Law. Gabriel received a diploma with highest distinction in European Studies from the University of Vienna in 2010 and a diploma in Law & Logic from Harvard Law School and the European University Institute in Florence in 2013. From September 2019-June 2020 he was a visiting scholar at Harvard Law School. His first monograph on the UN Security Council and the International Criminal Court (Elgar 2018) won the Science Prize of the State of Lower Austria 2020. His second book on 'Domestic Law Concepts in International Investment Law' is forthcoming (Elgar 2026).

Recently Published

Legal Limits for the ICC’s Jurisdiction over International Crimes Committed in Sudan

On 3 November 2025, the Office of the Prosecutor of the International Criminal Court (ICC) announced investigations into crimes allegedly committed in Darfur since the outbreak of hostilities in April 2023. This announcement comes as reports emerged from from El-Fasher, Northern Darfur, about mass killings, rapes, and other crimes.  On 7 November, UN High Commissioner for…

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UN Security Council Referrals to the ICC and the Principle of Legality

Introduction On 1 November 2021, the Appeals Chamber (AC) of the International Criminal Court (ICC) rendered an interesting judgment relating to a jurisdictional challenge brought by the Defence in the case of Ali Muhammad Ali Abd-Al-Rhaman (“Ali Kushayb”). The challenge is noteworthy because it confronted the Court with novel issues of law relating to the…

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Why the ICC won’t get it right – The Legal Nature of UN Security Council Referrals and Al-Bashir Immunities

As readers of this blog probably know, the issue of personal immunities of Sudanese President Al-Bashir is highly controversial (see here, here, here, here, here, here, here and here). In particular, previous rulings by the ICC’s Pre-Trial Chambers have been criticized for their incorrect, inadequate and/or inconsistent reasoning for concluding…

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