17.—(1) This Article and Article 18 have effect in relation to the issue to constables under any statutory provision, including a statutory provision passed or made after the making of this Order, of warrants to enter and search premises; and an entry on or search of premises under a warrant is unlawful unless the warrant complies with this Article and is executed in accordance with Article 18.
(2) Where a constable applies for any such warrant, it shall be his duty—
(a)to state—
(i)the ground on which he makes the application; and
(ii)the statutory provision under which the warrant would be issued;
(b)to specify the premises which it is desired to enter and search; and
(c)to identify, so far as is practicable, the articles or persons to be sought.
(3) An application for such a warrant shall be supported by a complaint in writing and substantiated on oath.
(4) The constable shall answer any question that the justice of the peace or judge hearing the application asks him.
(5) A warrant shall authorise an entry on one occasion only.
(6) A warrant—
(a)shall specify—
(i)the name of the person who applies for it;
(ii)the date on which it is issued;
(iii)the statutory provision under which it is issued; and
(iv)the premises to be searched; and
(b)shall identify, so far as is practicable, the articles or persons to be sought.
(7) Two copies shall be made of a warrant.
(8) The copies shall be clearly certified as copies by the justice of the peace or judge who issues the warrant.