Introduction: The Co-constitution of legal expertise and International Security

The role of experts in international legal process is part of a long-standing debate. In his prominent contribution to this debate, Koskenniemi critically scrutinizes how the fragmentation of international law has led to an expansion of the role of functional experts, and has resulted in a technicalization of the field. Any issue can be dealt with through a variety oflegal regimes, and depending on howitis framed or problematized, the specialized knowledge of a particular kind of expert is essential for lawyers and judges to gain insight into the complex non-legal technicalities of the issue at hand.1 This expansion of the role of scientific experts was foreseen (and advocated) by Schachterin the 1970s, who called for a ‘systematic collaboration with other scientific and professional groups’ as necessary for the adequate execution of the international judicial task. In Schachter’s view, a unified international legal profession would be able ‘as a class irrespective of specialization to take part in the communication and collaboration that define theirinvisible college’.2 The unity and strength ofinternationallaw would,in other words, be bolstered by the conversation with outside experts.

Leiden Journal of International Law p. 183-192 2013

Anna Leander,

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