The commissioner of public safety shall direct the chief of the division of criminal investigation to establish a subdivision to be the primary criminal investigative and enforcement agency for the purpose of enforcement of chapters 99D, 99E, and 99F. The commissioner of public safety shall appoint or assign other agents to the division as necessary to enforce chapters 99D, 99E, and 99F. All enforcement officers, assistants, and agents of the division are subject to section 80.15 except clerical workers.