Faculty in the News

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International law and litigation, national security law, terrorism, war on terrorism

Ashley S. Deeks

Associate Professor of Law
Senior Fellow, Center for National Security Law

J.D., University of Chicago Law School, 1998
B.A., Williams College, 1993

Ashley Deeks joined the Law School in 2012 as an associate professor of law after two years as an academic fellow at Columbia Law School. Her primary research and teaching interests are in the areas of international law, national security, intelligence and the laws of war. She has written a number of articles on the use of force, the intersection of national security and international law, and the laws of war. She is a member of the State Department's Advisory Committee on International Law and serves as a senior contributor to the Lawfare blog. Deeks also serves on the editorial board for the Journal of National Security Law and Policy, and is a senior fellow at the Lieber Institute for Law and Land Warfare.

Before joining Columbia in 2010, she served as the assistant legal adviser for political-military affairs in the U.S. Department of State’s Office of the Legal Adviser, where she worked on issues related to the law of armed conflict, the use of force, conventional weapons and the legal framework for the conflict with al-Qaida. She also provided advice on intelligence issues. In previous positions at the State Department, Deeks advised on international law enforcement, extradition and diplomatic property questions. In 2005, she served as the embassy legal adviser at the U.S. embassy in Baghdad, during Iraq’s constitutional negotiations. Deeks was a 2007-08 Council on Foreign Relations international affairs fellow and a visiting fellow in residence at the Center for Strategic and International Studies.

Deeks received her J.D. with honors from the University of Chicago Law School, where she was elected to the Order of the Coif and served as comment editor on the Law Review. After graduation, she clerked for Judge Edward R. Becker of the U.S. Court of Appeals for the Third Circuit.

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"Confronting and Adapting: Intelligence Agencies and International Law,” 102 Va. L. Rev. 599 (2016).

"Multi-Part Tests in the Jus Ad Bellum," 53
Hous. L. Rev. 1035 (2016).

“Intelligence Communities, Peer Constraints, and the Law,” 7 Harv. Nat’l Security J. 1 (2016).

“Intelligence Communities and International Law: A Comparative Approach,” in Comparative International Law (A. Roberts et al. eds, Oxford Univ. Press, forthcoming 2016).

"Checks and Balances from Abroad," 83 U. Chi. L. Rev. 65 (2016).

"An International Law Framework for Surveillance," 55
Va. J. Int'l L. 291 (2015).

Taming the Doctrine of Preemption,"
The Oxford Handbook on the Use of Force, Marc Weller ed., OUP (2015).

“Domestic Humanitarian Law: Developing the Law of War in Domestic Courts,” in Derek Jinks et al., eds.,
Applying International Humanitarian Law in Judicial and Quasi-Judicial Bodies: International and Domestic Aspects 133 (Asser Press/Springer, 2014).

"Consent to the Use of Force and International Law Supremacy," 54
Harv. J. Int'l L. 1 (2013).
HeinOnline PDF

"The Geography of Cyber Conflict: Through a Glass Darkly," 89
Int'l L. Stud. 1 (2013).
SSRN | HeinOnline (PDF)

"The Observer Effect: National Security Litigation, Executive Policy Changes, and Judicial Deference," 82
Fordham L. Rev. 827 (2013).
SSRN | HeinOnline (PDF)

“Unwilling or Unable: Toward a Normative Framework for Extra-Territorial Self-Defense," 52 Va. J. Int’l L. 483 (2012).
SSRN | HeinOnline (PDF)

"Iraq’s Constitution: A Drafting History"(with Matthew Burton), 40 Cornell Int’l L. J. 1 (2007).
HeinOnline PDF
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