The director of public safety, on behalf of enforcement agents, may enter into cooperative or contractual arrangements with the United States, any agency or department of the United States, other states, other departments and political subdivisions of this state, or any other person or body politic to accomplish the purposes of the investigative unit of the department of public safety. The director shall cooperate with and not infringe upon the rights of other state departments, divisions, boards, commissions, and agencies, and private agencies, in the conduct of enforcement plans and other matters in which the department of public safety and those departments and agencies have common interests.