This article discusses empirical examples from international trial transcripts to see if and why there is a need to use the ‘enemy of all humanity’ label in contemporary international criminal justice discourse. It shows an absence of explicit uses of the concept and an ambiguous set of implicit references; the hosti generis humani concept is simultaneously too precise and too broad for ICJ discourse. Based on these findings, the article challenges David Luban’s suggestion that the term can be undone from its dehumanizing potential and used adequately in the ICJ context.

Antony Duff, Marc de Wilde, Louis Sicking, and Sofia Stok offer several criticisms of my “The Enemy of All Humanity,” but central to all of them is concern that labeling people hostis generis humani dehumanizes them, and invites murder or extrajudicial execution. In response I distinguish political, legal, and theoretical uses of the ancient label. I agree with the critics that the political use is toxic and the legal use is dispensable. However, the theoretical concept is crucial in international criminal law, which rests on the assumptions that the moral heinousness of core crimes makes them the business of all humanity. Furthermore, far from dehumanizing their perpetrators, calling them to account before the law recognizes that they are no different from the rest of humanity. This response also offers rejoinders to more specific objections raised by the critics.

The central question in this article is whether an empirical-legal approach of victimhood and victim rights could offer a sufficient basis for proposals of legal reform of the legal system. In this article, we choose a normative-critical approach and raise some objections to the way in which part of such research is currently taking place in the Netherlands, on the basis of two examples of research in this field, one dealing with compelled apologies as a possible remedy within civil procedural law and the other with the victim’s right to be heard within the criminal legal procedure. In both cases, we argue, the strong focus on the measurable needs of victims can lead to a relatively instrumental view of the legal system. The legal system must then increasingly be tailored to the wishes and needs of victims. Within this legal-empirical, victim-oriented approach, there is little regard for the general normative principles of our present legal system, in which an equal and respectful treatment of each human being as a free and responsible legal subject is a central value. We argue that results of empirical-legal research should not too easily or too quickly be translated into proposals for legal reform, but first become part of a hermeneutical discussion about norms and legal principles, specific to the normative quality of legal science itself.