10. Except in so far as in any particular case such immunity or privilege is waived by the Secretary General of the Authority, experts (other than officials of the Authority) performing missions on behalf of the Authority shall enjoy–
(a)immunity from suit and legal process (even after the termination of their mission) in respect of acts, including words written or spoken, done by them in the exercise of their functions;
(b)during the period of their missions (including during journeys made in connection with service on such missions), the like immunity from personal arrest or detention as is accorded to a diplomatic agent; and
(c)during the period of their missions (including during journeys made in connection with service on such missions), the like inviolability for all papers and documents as is accorded to a diplomatic agent.