6.—(1) Where under these Rules any document is to be served on the Director, it may be served—
(a)by post, DX, fax, electronic mail or other electronic means at—
(i)the principal office of the Service Prosecuting Authority; or
(ii)with the agreement of a prosecuting officer, that Authority’s main office in Germany; or
(b)on a prosecuting officer personally, with his agreement.
(2) Where under these Rules any document is to be served on—
(a)the Attorney General, it may be served by post, DX or fax at the Attorney General’s Office;
(b)the Judge Advocate General, it may be served by post, DX or fax at the Office of the Judge Advocate General;
(c)the Secretary of State, it may be served by post, DX or fax on the Secretary of State for Defence.