(1)Where a local authority who have issued a permit under section 68—
(a)have reason to believe that there has been a change in the circumstances which prevailed at the time when they issued the permit, and are of the opinion that, if the application for the permit had been made in the new circumstances of the case, the permit would not have been issued by them, or
(b)have reason to believe that any information furnished to them by the promoter (or, in the case of a collection in relation to which there is more than one promoter, by any of them) for the purposes of the application for the permit was false in a material particular,
then (subject to subsection (2)) they may—
(i)withdraw the permit;
(ii)attach any condition to the permit; or
(iii)vary any existing condition of the permit.
(2)Any condition imposed by the local authority under subsection (1) (whether by attaching a new condition to the permit or by varying an existing condition) must be one that could have been attached to the permit under section 68(2) at the time when it was issued, assuming for this purpose—
(a)that the new circumstances of the case had prevailed at that time, or
(b)(in a case falling within paragraph (b) of subsection (1) above) that the authority had been aware of the true circumstances of the case at that time.
(3)Where a local authority who have issued a permit under section 68 have reason to believe that there has been or is likely to be a breach of any condition of it, or that a breach of such a condition is continuing, they may withdraw the permit.
(4)Where under this section a local authority withdraw, attach any condition to, or vary an existing condition of, a permit, they shall serve on the promoter written notice of their decision to do so and of the reasons for their decision; and that notice shall also state the right of appeal conferred by section 71(2) and the time within which such an appeal must be brought.
(5)Where a local authority so withdraw, attach any condition to, or vary an existing condition of, a permit, the permit shall nevertheless continue to have effect as if it had not been withdrawn or (as the case may be) as if the condition had not been attached or the variation had not been made—
(a)until the time for bringing an appeal under section 71(2) has expired, or
(b)if such an appeal is duly brought, until the determination or abandonment of the appeal.