24.—(1) (a) Every officer transferred (or deemed to have been transferred) by article 17 or 18 to the employment of a transferee authority shall, so long as he continues in that employment by virtue of the transfer or appointment and until he is served with a statement in writing of new terms and conditions of employment, enjoy terms and conditions of employment not less favourable than those he enjoyed immediately before the relevant date. The said new terms and conditions shall be such that—
(i)so long as the officer is engaged in duties reasonably comparable to those in which he was engaged immediately before the relevant date, the scale of his salary or remuneration, and
(ii)the other terms and conditions of his employment,
are not less favourable than those he enjoyed immediately before the relevant date, and any question whether duties are reasonably comparable as aforesaid shall be determined by a tribunal established under section 12 of the Industrial Training Act 1964. The statement of new terms and conditions shall contain information that any question shall be so determined and as to the person and address to whom any question should be referred.
(b)A statement of new terms and conditions of employment shall not be served in respect of any officer in relation to whom a question has been referred under article 20(1) until the decision of the tribunal has been notified.
(c)If after service of a statement of new terms and conditions of employment upon him a question is referred in respect of an officer under article 20(1), the statement shall cease to have effect, sub-paragraph (a) of this paragraph shall have effect as if the statement had not been served, and no new statement shall be served until the decision on the question has been notified.
(2) A written statement given in accordance with section 4(1) of the Contracts of Employment Act 1963 shall not be regarded as a statement of new terms and conditions of employment for the purposes of paragraph (1) unless the statement so indicates.