After Rule 42A.05(2) of the Principal Rules insert —
"(3) If the document is in writing then, unless a subpoena specifically requires the production of the original, the addressee may produce a copy of any document required to be produced by the subpoena.
(4) The copy of a document referred to in paragraph (3) may be—
(a) a photocopy; or
(b) in PDF format on a CD-Rom.".