Scobbie also challenged Rozenman's interpretation of Article 49 of the Fourth Geneva Convention of 1949. "The fundamental point about settlements, then," concluded Scobbie, "is not that they obstruct diplomacy—which they do—but rather that they are illegal." Occupying powers do not have sovereignty over occupied territory, but must act in accordance with international law. Scobbie's article "The Theorist as Judge: Hersch Lauterpacht's Concept of the International Judicial Function" appeared in the "European Journal of International Law" in 1997. He is a member of the Executive Board of the European Society of International Law, and of its International Legal Theory interest group; of the Governing Board of the Scottish Centre for War Studies, based in the University of Glasgow; of the Lieber Society on the Law of Armed Conflict; and of the International Advisory Council of Diakonia’s International Humanitarian Law Programme, based in Jerusalem; of the International Advisory Council of Diakonia's Jerusalem-based International Humanitarian Law Programme; and of the Scientific Advisory Board of the European Journal of International Law.