The director of the department of lands of the state of Idaho shall divide the state into districts to be known and designated as forest protective districts, having due regard in establishing the boundaries thereof, to the adequate, effective and economical protection of forest and range lands therein; he shall appoint one (1) fire warden for each of the districts of the state on the recommendation of the protection agency representing the forest land owners in each such district, who shall at all times be responsible to and under the direction and control of the director of the department of lands and shall perform such duties at such times and places as he shall direct. Fire wardens shall hold office until their appointment is revoked and the director of the department of lands may revoke the same at any time. The fire warden so appointed may, subject to approval by the director of the department of lands, appoint deputy fire wardens within their respective districts and such appointments may be revoked at any time by the fire warden or director of the department of lands. All the officers provided for in this act shall have and exercise police powers while engaged in performing the duties of their respective offices.