(1) A person is not obliged to comply with a notice under section 793 (notice requiring information about interests in company's shares) if he is for the time being exempted by the Secretary of State from the operation of that section.
(2) The Secretary of State must not grant any such exemption unless -
(a) he has consulted the Governor of the Bank of England, and
(b) he (the Secretary of State) is satisfied that, having regard to any undertaking given by the person in question with respect to any interest held or to be held by him in any shares, there are special reasons why that person should not be subject to the obligations imposed by that section.