For the purpose of sections forty to forty-four, inclusive, said director may cooperate with the University of Massachusetts, the United States Forest Service, and any other appropriate public or private organization and may authorize their employees to perform the duties outlined in section forty-two, subject to the approval of the director. The members of said committee, the director, his agents and other designated persons may in the performance of their duties under said sections pass through or over private property.
Mass. Gen. Laws ch. 132, § 45