Gambling and crime occur in countries all over the world. However, there is a lack of research exploring how gambling and crime are related, and how to sort and classify different types of crime. Also, the relationship between gambling and crime is not often considered when public policies are being made. In this article, the authors review research articles that investigated the relationships between gambling and crime. Based on the review, the authors propose a system to sort and classify gambling-related crimes into four main categories. The authors then illustrate the use of the system with the UK as an example. They identify the laws relevant to each type of crime, and the agencies responsible for enforcing the laws. This article could be useful to policy makers, regulators, service providers, and researchers.