7For the purpose of helping members—
(a)of courts-martial constituted under the [1955 c. 18.] Army Act 1955 or the [1955 c. 19.] Air Force Act 1955; or
(b)of courts-martial constituted under the [1957 c. 53.] Naval Discipline Act 1957 or disciplinary courts constituted under section 50 of that Act,
to understand complicated issues of fact or technical terms Rules of Procedure under section 103 of either of the first two of those Acts and General Orders under section 58 of the Naval Discipline Act 1957 may make provision—
(i)as to the furnishing of evidence in any form, notwithstanding the existence of admissible material from which the evidence to be given in that form would be derived; and
(ii)as to the furnishing of glossaries for such purposes as may be specified;
in any case where the court gives leave for, or requires, evidence or a glossary to be so furnished.