If contemporary political theory in the area of international justice is to accomplish its aim of clarifying and making coherent the meaning of justice in an international context, the question of the appropriate role and responsibility of international criminal law must be answered. International criminal law must be more than simply domestic laws that are prosecuted at the international level. However, the question of what makes an international crime such that it deserves this special classification and international condemnation has not (...) been adequately theorized. This paper examines the character of international law as expressed by two theorists, Allen Buchanan and Larry May, and reveals the deficiencies of their theories. Then, it offers the first steps to a better theory, one that demands that two thresholds be met for an action to be considered international crime: the severity threshold and the agency threshold. It argues that these two thresholds restrict the domain of international criminal law to crimes that are of significant concern to the global community by way of their threat to political organization. International crimes are the jurisdiction of the international community because they threaten the most basic physical security human rights and because they originate out of the fundamental nature of humans as social entities and maliciously distort and threaten this natural inclination. (shrink)