The heads of all government departments, divisions and agencies shall cooperate with the Bureau and furnish the Bureau complete information regarding activities and programs of their various dependencies which are directly or indirectly related with traffic-control and accident-prevention problems. At the request of the Police Commissioner and with the previous approval of the Governor, the heads of government departments, authorities and agencies shall temporarily assign to the Bureau such technicians and employees as may be necessary to effectuate the provisions of this chapter.