If the parties in a contested case under article 5 agree to any fact involved in the controversy by stipulation or there is a finding of fact and conclusion of law in an action under that article that a person has violated this act, the hearings examiner shall assess costs related to the investigation of the violation and costs related to the prosecution of the action. The costs related to the investigation and prosecution include, but are not limited to, salaries and benefits of personnel, costs related to the time spent by the attorney general’s office and other personnel working on the action, and any other expenses incurred by the department for the action.