81.— (1) In performing functions under this or any other enactment as—

(a) a member of the Board or a committee of the Board,

(b) the chief executive officer, the chief inspector or any other employee of the Authority,

(c) a person engaged by the Authority as an adviser under section 28, or

(d) an employee of a person referred to in paragraph (c),

a person shall maintain proper standards of integrity, conduct and concern for the public interest.

(2) Subsection (1) applies to an employee of a person referred to in subsection (1)(c) in respect only of duties of employment relating to the purposes for which the Authority has engaged that person.