If a regulator gives a person ("A") a notice to which this section applies, it must—
But the regulator giving the notice does not have to allow A access to material under subsection (1) if the material is excluded material or it—
The regulator giving the notice may refuse access A to particular material which it would otherwise have to allow him access to if, in its opinion, allowing him access to the material—
If the regulator giving the notice does not allow A access to material because it is excluded material consisting of a protected item, it must give A written notice of—
If the regulator giving the notice refuses under subsection (3) to allow A access to material, it must give him written notice of—
"Secondary material" means material, other than material falling within paragraph (a) of subsection (1) which—
"Excluded material" means material which—