32. Where—
(a)a notice given under Rule 24 relates to a statement which is admissible by virtue of section 1 of the Act of 1971; and
(b)the person who originally supplied the information from which the record containing the statement was compiled, is not called as a witness at the hearing of the proceedings; and
(c)none of the reasons mentioned in Rule 27 applies so as to prevent the party who gave the notice from calling that person a witness;
no other party to the proceedings shall be entitled, except with the leave of the court, to adduce in relation to that person any evidence which could otherwise be adduced by him by virtue of section 4 of the Act of 1971 unless he gave a counter-notice under Rule 28 in respect of that person or applied under Rule 30 for a direction that that person be called as a witness at the hearing of the proceedings.