This research note begins by situating some of the major areas of inquiry within social-science research on the criminalization of HIV/AIDS non-disclosure. The evolution of the use of this criminal justice measure in the attempt to regulate HIV/AIDS transmission illustrates what has been termed “criminalization creep,” whereby steadily increasing numbers of people are charged with increasingly severe crimes. We outline some of the key and precedent-setting cases in Canadian law in order to explore the problematic of criminalization and suggest avenues for future research on this subject.