6U.K.The enactment or obligation shall not prevent or penalise the disclosure of relevant information by authority E or an authorised officer of that authority to contractor A or an employee of his if—
(a)the disclosure is necessary or expedient for the purpose of facilitating the exercise of the relevant function, a related function or a function of authority E; and
(b)the information could be lawfully disclosed, for that purpose, by authority E to authority A.