The functions of the Secretary of State under sections 13 to 25 may be exercised by, or by the employees of, such person as the Secretary of State may authorise for the purpose (an "authorised person").
An authorisation given by virtue of this section may authorise the exercise of a function—
An authorisation under this section—
Anything done or omitted to be done by or in relation to an authorised person (or an employee of that person) in, or in connection with, the exercise or purported exercise of the function concerned is to be treated for all purposes as done or omitted to be done by or in relation to the Secretary of State or (as the case may be) an officer of the Secretary of State.
Subsection (4) does not apply—
Where—
the authorised person is entitled to treat the contract as repudiated by the Secretary of State (and not as frustrated by reason of the revocation).