The Department of Justice is responsible for investigation and enforcement of controlled gambling activity in this state as set forth in the Gambling Control Act (Chapter 5 (commencing with Section 19800) of Division 8 of the Business and Professions Code).
Source:
Section 15001.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=15001.1..