31Authorisations: supplemental
(1)An authorisation—
(a)must be in writing,
(b)must be signed by the relevant officer giving it, and
(c)must specify—
(i)the relevant locality,
(ii)the grounds on which the authorisation is given, and
(iii)the period during which the powers conferred by section 30(3) to (6) are exercisable.
(2)An authorisation may not be given without the consent of the local authority or each local authority whose area includes the whole or part of the relevant locality.
(3)Publicity must be given to an authorisation by either or both of the following methods—
(a)publishing an authorisation notice in a newspaper circulating in the relevant locality,
(b)posting an authorisation notice in some conspicuous place or places within the relevant locality.
(4)An “authorisation notice” is a notice which—
(a)states the authorisation has been given,
(b)specifies the relevant locality, and
(c)specifies the period during which the powers conferred by section 30(3) to (6) are exercisable.
(5)Subsection (3) must be complied with before the beginning of the period mentioned in subsection (4)(c).
(6)An authorisation may be withdrawn by—
(a)the relevant officer who gave it, or
(b)any other relevant officer whose police area includes the relevant locality and whose rank is the same as or higher than that of the relevant officer mentioned in paragraph (a).
(7)Before the withdrawal of an authorisation, consultation must take place with any local authority whose area includes the whole or part of the relevant locality.
(8)The withdrawal of an authorisation does not affect the exercise of any power pursuant to that authorisation which occurred prior to its withdrawal.
(9)The giving or withdrawal of an authorisation does not prevent the giving of a further authorisation in respect of a locality which includes the whole or any part of the relevant locality to which the earlier authorisation relates.
(10)In this section “authorisation” means an authorisation under section 30.