“(3A)

Rules under section 58 may, in relation to a court-martial for the trial of a person mentioned in subsection (1) or (2) above (whether alone or with other persons), make provision—

(a)

as to the persons who may be appointed under section 54(1)(a) or (c) as members of the court-martial (and the rules may in particular provide that persons other than naval officers or naval warrant officers may be so appointed);

(b)

modifying the application of Part 2 of this Act in consequence of any provision made by virtue of paragraph (a).”