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The Spy Who Came In From The Cold War: Intelligence And International Law, Simon Chesterman

Michigan Journal of International Law

This Article will focus on the narrower questions of whether obtaining secret intelligence-that is, without the consent of the state that controls the information-is subject to international legal norms or constraints, and what restrictions, if any, control the use of this information once obtained. Traditional approaches to the question of the legitimacy of spying, when even asked, typically settle on one of two positions: either collecting secret intelligence remains illegal despite consistent practice, or apparent tolerance has led to a "deep but reluctant admission of the lawfulness of such intelligence gathering, when conducted within customary normative limits.” Other writers have …