Armories, stables, storehouses, arsenals, depots, and other agencies and facilities for the use of the national guard shall be built by the state, repairs thereto, and the maintenance, and necessary expenses for heating, lighting, and for water, shall be paid by the state, except that the state pay only such part of such expense for water, heat, or light, as was incurred for military purposes: provided further, that no moneys of the state shall be expended for any of the purposes provided in this section unless the funds be from an appropriation made by the legislature for such specific purpose.
Idaho Code § 46-701