According to contemporary nonpositivist theories, legal obligations are a subset of our genuine moral obligations. Debates within nonpositivism then turn on how we delimit the legal “domain” of morality. Recently, nonpositivist theories have come under criticism on two grounds. First, that they are underinclusive, because they cannot explain why paradigmatically “legal” obligations are such. Second, that they are overinclusive, because they count as “legal” certain moral obligations that are plainly nonlegal. This paper undertakes both a ground-clearing exercise for and a defense of nonpositivism. It argues, in particular, that Dworkin's claims about the legal domain of morality in his later work are often mischaracterized by critics, because these critics fail to read these claims in light of his earlier theory of “Law as Integrity.” A nonpositivist theory that unifies Dworkin's earlier and later work, I argue, deals with the criticisms leveled at nonpositivist theories better than other nonpositivist competitors.

This paper examines what prevents us from legally enforcing the moral imperative of protecting human rights during military operations carried out for distinctly humanitarian purposes. The answer, I argue, lies not in familiar objections to bringing the law into greater congruence with morality, but in international law's indeterminacy regarding the use of force. Preserving stability within the nascent international legal system comes at the cost of a law that eschews the protection of individual rights even in cases in which the protection of human rights is what justifies military action. The tension between state sovereignty and the protection of human rights thus not only generates well-known controversies about the lawfulness of military intervention. It also prevents us from devising laws to protect human rights during wars whose very purpose it is to stop human rights violations. Protecting human rights during humanitarian interventions may thus remain an undertaking as quixotic as it is morally urgent.

This paper provides a taxonomy of the different kinds of theory that may be offered of an area of law. We distinguish two basic types of philosophical accounts in special jurisprudence: nonnormative accounts and normative accounts. Section II explains the two central subspecies of nonnormative accounts of areas of law: (i) conceptual and ontological theories and (ii) reason-tracking causal theories. Section III explores normative theories of areas of law. Normative accounts subdivide into detached and committed normative accounts. Detached or committed normative accounts can be subdivided further into the following cross-cutting categories: (i) pro tanto or all-things-considered, (ii) hyper-reformist or practice-dependent, (iii) taxonomical or substantive. Section IV shows that our taxonomy does not presume a prior commitment to any particular school in general jurisprudence. This paper clarifies methodological confusion that exists in theorizing about areas of law, and contributes to the subfield of thinking generally about special jurisprudence.