4.—(1) The specification of a person must be in writing and may, but need not, specify a date when the specification ends.
(2) The Secretary of State must publish the relevant details of any appointing person—
(a)on a website;
(b)in the London Gazette.
(3) The relevant details are—
(a)the appointing person’s name;
(b)the appointing person’s registered address (if any);
(c)the appointing person’s address for correspondence; and
(d)details of the class of principal authorities in relation to which that person is the appointing person, if the class is not all principal authorities.