Mens Rea Element in Superior Responsibility under Customary International Law and the Rome Statute

Abstract

Superior responsibility has been a widely recognised form of responsibility for omission in both treaty and customary international law. Superiors are held responsible for the acts of their subordinates when they fail in fulfilling their duties to prevent or punish crimes of subordinates. Duties to prevent and punish arise only after the superior knows about the subordinate’s crimes or has a reason to know about it. ‘Has a reason to know’ is a form of constructive knowledge and could be defined as absence of actual knowledge about subordinates’ crimes where that knowledge should exist because of information available to
the superior from the content of which it could be easily concluded that there is a possibility that subordinates intend to commit, are committing or have already committed crimes and the lack of that knowledge is a cause of willful disregard of his duties or at least disregard based on gross negligence.