(1)Restrictions specified in a restriction notice have effect in addition to any already specified, whether in an earlier restriction notice or in a restriction order.
(2)Restrictions specified in a restriction order have effect in addition to any already specified, whether in an earlier restriction order or in a restriction notice.
(3)The Minister may vary or revoke a restriction notice by giving a further notice to the chairman at any time before the end of the inquiry.
(4)The chairman may vary or revoke a restriction order by making a further order during the course of the inquiry.
(5)Restrictions imposed under section 19 on disclosure or publication of evidence or documents (“disclosure restrictions”) continue in force indefinitely, unless—
(a)under the terms of the relevant notice or order the restrictions expire at the end of the inquiry, or at some other time, or
(b)the relevant notice or order is varied or revoked under subsection (3), (4) or (7).
This is subject to subsection (6).
(6)After the end of the inquiry, disclosure restrictions do not apply to a public authority, or a Scottish public authority, in relation to information held by the authority otherwise than as a result of the breach of any such restrictions.
(7)After the end of an inquiry the Minister may, by a notice published in a way that he considers suitable—
(a)revoke a restriction order or restriction notice containing disclosure restrictions that are still in force, or
(b)vary it so as to remove or relax any of the restrictions.
(8)In this section “restriction notice” and “restriction order” have the meaning given by section 19(2).