After Rule 42.10(2) of the Principal Rules insert —
"(3) The issuing party must attach to the front of a subpoena to produce to be served on the addressee a notice and declaration in accordance with Form 42B.
(4) The addressee must—
(a) complete the notice and declaration referred to in paragraph (3); and
(b) attach it to the subpoena or copy of the subpoena which accompanies the documents produced to the Court under the subpoena.
(5) Subject to paragraph (6), the Registrar may, upon the expiry of four months from the conclusion of the proceeding, cause to be destroyed all the documents produced in the proceeding in compliance with a subpoena which were declared by the addressee to be copies.
(6) The Registrar may cause to be destroyed those documents declared by the addressee to be copies which have become exhibits in the proceeding when they are no longer required in connection with the proceeding, including on any appeal.".