The thesis of this chapter is simple and straightforward. The criminal law is a thoroughly folk psychological enterprise that is completely consistent with the truth of determinism or universal causation. My goal is to demonstrate that it provides an accurate positive account of criminal law and that compatibilist criminal law is normatively desirable. The chapter begins with a brief account of desert–disease jurisprudence that explains under what conditions the state may constrain a person\u27s liberty. The purpose is to situate in legal context the place of criminal justice as a means of social control. Next, the chapter offers an introduction to the criminal law\u27s implicit psychology and view of the person that underpins desert–diseas...