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.

In his contribution to this special issue, David Luban proposes to revive the age-old concept of ‘the enemy of all humanity.’ On his view, this concept supports the aims of international criminal justice by emphasizing that atrocity and persecution crimes are ‘radically evil’ and therefore ‘everyone’s business.’ Criticizing Luban’s proposal, this paper shows that in the past, the ‘enemy of all humanity’ concept has often served to establish parallel systems of justice, depriving these ‘enemies’ of their rights as suspects under criminal law and as lawful combatants under the laws of war. Thus, even if the ‘enemy of all humanity’ concept is used with the intention to bring today’s perpetrators of ‘radical evil’ to justice, it risks undermining, rather than protecting, the rule of law.

Piracy holds a special place within the field of international law because of the universal jurisdiction that applies. This article reconsiders the role of piracy in the development of universal jurisdiction. While usually a connection is established between Cicero’s ‘enemy of all’ and modern conceptions of pirates, it is argued that ‘enemy of the human species’ or ‘enemy of humanity’ is a medieval creation, used by Bartolus, which must be understood in the wake of the Renaissance of the twelfth century and the increased interest for the study of Roman Law. The criminalization of the pirate in the late Middle Ages must be understood not only as a consequence of royal power claiming a monopoly of violence at sea. Both the Italian city-states and the Hanse may have preceded royal power in criminalizing pirates. All the while, political motives in doing so were never absent.

This article addresses the conditions of possibility for the precautionary turn in legal discourse. Although the precautionary turn itself has been well-detailed in both legal and political discourse, insufficient attention has been paid to what made this shift possible. This article remedies this, starting by showing how the events of 9/11 were unable to be incorporated within current discursive structures. As a result, these discursive structures were dislocated and a new ‘crisis discourse’ emerged that succeeded in attributing meaning to the events of 9/11. By focusing on three important cases from three different jurisdictions evidencing the precautionary turn in legal discourse, this article shows that crisis discourse is indeed employed by the judiciary and that its logic made this precautionary approach to counterterrorism in the law possible. These events, now some 16 years ago, hold relevance for today’s continuing presence of crisis and crisis discourse.

The extensive interpretation of criminal law to the detriment of the defendant in criminal law is often problematized in doctrinal theory. Extensive interpretation is then argued to be problematic in the light of important ideals such as democracy and legal certainty in criminal law. In the Dutch discussion of this issue, Klaas Rozemond has argued that sometimes extensive interpretation is mandated by the rule of law in order to protect the rights of victims. Rozemond grounds his argument on a reading of Dworkin’s distinction between the rule-book and the rights conception of the rule of law. In this article, I argue that Dworkin’s rights conception, properly considered, does not necessarily mandate the imposition of criminal law or its extensive interpretation in court in order to protect victims’ rights.

In this paper, I suggest a discourse theory of basic legal rights that is superior to rival approaches, such as a will-based or an interest-based theory of rights. Basic rights are reciprocally and generally justifiable and binding claims on others (agents or institutions) that they should do (or refrain from doing) certain things determined by the content of these rights. We call these rights basic because they define the status of persons as full members of a normative order in such a way that they provide protection from severe forms of legal, political and social domination. The very ground of these rights is the status of persons as free and equal normative authorities within the order they are subject to. In other words, these rights are grounded in a fundamental moral right to justification.

International criminal courts have made an important contribution to the development of international criminal law. Through case law, the courts have fine-tuned and modernized outdated concepts of international crimes and liability theories. In studying this practice, scholars have so far focused on the judicial interpretation of statutory and customary rules, thereby paying little attention to the rules’ application in individual cases. In this article, I reveal the limitations of this approach and illustrate how insights from casuistry can advance international criminal law discourse. In particular, I use the example of genocide to show that casuistic case law analyses can help scholars clarify the meaning of the law and appraise the application of substantive legal concepts in individual cases. Based on these observations, I argue that scholars should complement their current research with studies into the casuistry of international criminal law.

Factors justifying not presuming innocence are generally incorporated into the Presumption of Innocence (PoI). A confusing discourse has resulted: numerous guilt-presuming acts are deemed consistent with the PoI. I argue for an unusually broad PoI: any act that might convey to a reasonable actor that he is not presumed innocent of a punishable offence constitutes a PoI interference. Thus, academic debate need only be about the question what PoI interferences are justifiable or unjustifiable. This question must be answered using pro- and anti-PoI values. I analyse three PoI interferences in relation to Duff’s retributivist punishment theory: presumptions of guilt, vicarious liability of car owners and coercing non-suspects into proving their sobriety. Retributivists tend to castigate such procedures based on their (supposed) consequentialist rationale. I argue, however, that they might also be justified on retributivist grounds. The retributivist anti-PoI duty to punish the guilty may be the worst enemy of innocents.

In my response to Duff I focus mainly on the following two issues. Firstly, I examine what kind of a norm the presumption of innocence (PoI) really is and how it ontologically differs from other types of rules, principles, rationales, etc. My tentative conclusion is that a PoI does not suffice the requirement of being a dogmatic rule and, thus, has less weight than what Duff perhaps assumes.
Secondly, I examine what role the concept of innocence plays in the debate on fundamental (moral and legal) principles and the underlying rationales of a criminal law system. Although I am sympathetic to much of what Duff purports in his plea for civic trust and a parsimonious use of criminal law, I am reluctant to believe that it is really a broader version of a PoI that warrants the kind of morally decent criminal law system that he suggests normatively ought to be. In my view, most of what Duff wants to ascribe to the PoI can be derived from a principle of fairness which, in my view, is already embedded in the fundamentals of criminal law doctrine.

Messina, a Sicilian town, was devasteted by an earthquake in1908. It was an hecatomb. Stricken through this unfathomable disgrace Messina’s institutions and civil society collapsed and a sort of wild natural state replaced the rule of law. In this situation there was a first intervention of the Russian Czarist navy who came to help but immediately enforced cruel emergency measures. The Italian army followed and there was a formal declaration of an ‘emergency situation.’ Around this event and the several exceptional measures taken by the government a debate took place about the legality of those exceptional measures. The article tries to reconstruct the historical context and the content of that debate and in a broader perspective thematizes how law (and morality) could be brought to meet the breaking of normality and ordinary life by an unexpected and catastrophic event.