In any prosecution or other legal proceedings under this Act, proof is not required, unless evidence is given to the contrary:
(a) of the fact that a particular place is within a prescribed area; or
(b) of the particular or general authorization of a person by the Minister as the proper person to do any act, or for any purpose under this Act; or
(c) of the fact that the defendant is, or at any relevant time was, a ratepayer for an allotment.