21A. — (1) If a judge of the District Court is satisfied by information on oath of an authorised officer that there are reasonable grounds for believing that—

(a) evidence of or relating to the commission or intended commission of an offence under this Act or the Act of 1982 is to be found on land or a premises, or

(b) a record related to anything to which paragraph (a) refers is or may be on the land or premises,

then the judge may issue a search warrant.

(2) A search warrant under this section shall be expressed and operate to authorise a named authorised officer, accompanied by such authorised officers or other persons as the named authorised officer thinks necessary, at any time, within one month from the date of issue of the warrant, on production, if so requested, of the warrant, to enter, using reasonable force if necessary, the land or premises named in the warrant and to exercise all or any of the functions conferred on an authorised officer under section 21.]