(1) The Commissioner may by legislative instrument impose conditions and restrictions as to user, the movement of persons, and the conveyance of articles into, from and within diamond areas, areas of restriction and areas of exploitation.

(2) The Commissioner responsible for Internal Affairs may by legislative instrument-

(a) exclude aliens from entering or remaining in diamond areas except in accordance with a valid permit issued for that purpose;

(b) provide for the granting of permits to aliens to enter diamond areas and all matters incidental thereto, including fees payable and forms.

(3) Regulations made under this section may apply to all diamond areas or to any specified part or parts thereof.