On request of the Secretary, all employees and officers of the State shall assist the Department in all proper ways in carrying out this Division I and the regulations, guidelines, and policies adopted under it. This assistance shall be provided as a public duty and without extra compensation. On request of the Secretary, all employees and officers of the State or of a county or municipal corporation of the State shall: allow the Department reasonable use of public buildings for tests or investigations under this Division I; provide heat and light for the public buildings used by the Department under this subsection; and in all other proper ways, facilitate the work of the Department.