Approaching Custom Identification as a Conflict Avoidance Technique:TadićandKupreškićRevisited

Abstract

AbstractInternational human rights law (IHRL), international humanitarian law (IHL) and international criminal law (ICL) have trouble staying faithful to the two pillars of customary international law – state practice andopinio juris. In ICL, theTadićInterlocutory Appeal on Jurisdiction and theKupreškićTrial Judgement have even gone as far as enunciating new models to identify customs. In this article, I show that the approaches to customs’ identification postulated in these two cases were conflict-avoidance techniques used by the International Criminal Tribunal for the Former Yugoslavia (ICTY) to bring together IHRL and IHL. The crux of the matter in theTadićandKupreškićcases was that the human rights of the victims of war crimes committed in internal conflicts required that a new approach to customary international law be adopted. Thus, the criminal aspect of IHL (i.e., ICL) was updated, and conceptual conflicts between IHL and IHRL were avoided.