29.—(1) Where a question arises whether any of the reasons specified in Rule 27 applies in relation to a person, particulars of whom are contained in a notice under Rule 24, the court may, on the application of any party to the proceedings, determine that question before the hearing in accordance with Order 14 or give directions for it to be determined before the hearing and for the manner in which it is to be determined.
(2) Unless the court otherwise directs, notice in Form 123 of any application under paragraph (1) shall be served on every other party to the proceedings.
(3) Where any such question as is referred to in paragraph (1) has been determined thereunder, no application to have it determined afresh at the hearing of the proceedings may be made unless the evidence which it is sought to adduce in support of the application could not with reasonable diligence have been adduced at the time of the disposal of the application under paragraph (1).