9(1) Any decision of the Secretary of State under section 8 above or section 10 below may be revised by the Secretary of State–
(a)either within the prescribed period or in prescribed cases or circumstances; and
(b)either on an application made for the purpose or on his own initiative;
and regulations may prescribe the procedure by which a decision of the Secretary of State may be so revised.
9(2) In making a decision under subsection (1) above, the Secretary of State need not consider any issue that is not raised by the application or, as the case may be, did not cause him to act on his own initiative.