Use of expert evidence
10.—(1) Expert evidence shall be restricted to that which, in the opinion of the tribunal, is reasonably required to resolve the proceedings.
(2) An expert shall have a duty to assist the tribunal on matters within his expertise. This duty overrides any obligation to the person from whom he has received instructions or by whom he is paid.
(3) No party may call an expert or put in evidence an expert’s report without the permission of the tribunal. No expert report shall be put in evidence unless it has been disclosed to all other parties and any independent expert at least 28 days prior to the hearing under rule 26 of Schedule 1.
(4) In proceedings in which an independent expert has been required to prepare a report on the question, the tribunal shall not admit evidence of another expert on the question unless such evidence is based on the facts relating to the question. Unless the tribunal considers it inappropriate to do so, any such expert report shall be disclosed to all parties and to the tribunal on the same date on which the independent expert is required to send his report to the parties and to the tribunal.
(5) If an expert (other than an independent expert) does not comply with these Rules or an order made by the tribunal or a chairman, the tribunal may order that the evidence of that expert shall not be admitted.
(6) Where two or more parties wish to submit expert evidence on a particular issue, the tribunal may order that the evidence on that issue is to be given by one joint expert only. When such an order has been made, if the parties wishing to instruct the joint expert cannot agree who should be the expert, the tribunal may select the expert.