(1) The categories of protected information set out in Part 1 of the Schedule are hereby prescribed for the purposes of sections 63(a) (information which persons may withhold from the Assembly) and 395(3)(a) (information which functional bodies may withhold from the Mayor) of the Act.
(2) Such documents as would, if produced, disclose information within any category of protected information set out in Part 1 of the Schedule are hereby prescribed as a category of documents for the purposes of section 63(b) (categories of document which may be withheld from the Assembly) of the Act.
(3) In this article “protected information” means information which—
(a) the Assembly or (as the case may be) the Mayor cannot reasonably ascertain by means other than the exercise of their powers under section 61 (requiring attendance) or section 395 (information from functional bodies) of the Act respectively, and
(b) is held by or available to a person who is required to produce such information in the capacity in which he is required to attend proceedings or (as the case may be) to produce information.