Motivating Reasons, Moral Culpability, and Criminal Law

Consider the following argument: (1) Whether, or the degree, persons are morally culpable ultimately depends on the (final) reasons that motivate their actions; (2) The degree to which persons are morally culpable should be a central concern of criminal law; (3) Criminal law in many countries focuses more on the beliefs and intentions of agents and less on their motivating reasons; therefore (4) Criminal law in many countries is unjust and should be revised. The premises of this argument are appealing and widely accepted, yet its conclusion is radical. Therefore, the argument is interesting and important. However, the argument is not entirely clear in several respects, and the attempt to clarify it reveals several significant (although not necessarily decisive) doubts regarding its soundness. In this paper, I examine these doubts as well as a related, more general, lesson concerning normative arguments about the law.