4.—(1) Any party may deliver representations in relation to the matters referred to in regulation 4(2)(b) or 8(4), as appropriate in the circumstances, to the proper officer at any time before the appeal is determined.
(2) The adjudicator may invite a party to deliver to the proper officer representations dealing with such matters relating to the appeal as may be specified and any such representations must be so delivered within the time and in the manner specified.
(3) Where a party fails to respond to an invitation under sub-paragraph (2), the adjudicator may draw such inferences as appear proper to the adjudicator.
(4) Any representations delivered under this paragraph must be signed by the party in question or by someone authorised by that party to sign those representations.
(5) Where the appellant delivers representations to the proper officer under this paragraph, the proper officer must send a copy of the representations to the enforcement authority.
(6) Where the enforcement authority delivers representations to the proper officer under this paragraph, it must at the same time send a copy of the representations to the appellant.
(7) This paragraph is without prejudice to the powers of an adjudicator under paragraph 10.