17.—(1) A warrant under regulation 16 shall authorise an entry on one occasion only unless it specifies that it authorises multiple entries.
(2) If it specifies that it authorises multiple entries, it must also specify whether the number of entries authorised is unlimited, or limited to a specified maximum.
(3) A warrant—
(a)shall specify—
(i)the name of the person who applies for it;
(ii)the date on which it is issued;
(iii)that it is issued under these Regulations; and
(iv)each set of premises to be searched; and
(b)shall identify, so far as is practicable, the documents or information to be sought.