When any power or authority is given by any provision of this chapter to any person, it may be exercised by any deputy, inspector, or agent duly authorized by such person. Any person in whom the enforcement of any provision of this chapter is vested has the power of a peace officer as to such enforcement, which shall include state and federal agencies, and the State of Nevada, State of Oregon, or State of Arizona with which cooperative agreements have been made by the department to enforce any provisions of this chapter.