(1) No party may rely upon expert evidence without the permission of the Registrar of Tribunals or the Chair.
(2) If permission is given for expert evidence to be relied upon,
(a) the permission must be in respect of a named expert or a specific subject, and
(b) the evidence must be reasonably required for the purposes of the proceedings.
(3) An expert witness must be independent from the complainant and respondent, and at all times is under an overriding duty to help the tribunal on the matters within that person’s expertise.
(4) Expert evidence is to be set out in a written report, and the report shall contain—
(a) details of the expert’s qualifications and experience,
(b) details of the information provided and the questions asked of the expert for the preparation of the report,
(c) where there is a range of opinion on the matter dealt with in the report,
(i) a summary of the range of opinion,
(ii) reasons for the expert’s own opinion,
(d) a statement that the expert understands his or her duty to the tribunal, and has complied with that duty.
(5) Expert evidence cannot be relied upon without permission from the Chair, unless a copy of the report has been sent or delivered to the other party in accordance with directions given under rule 33.
(6) Where both parties wish to submit expert evidence on a particular issue, the Registrar of Tribunals or the Chair shall, save in exceptional circumstances, direct that the evidence on that issue is to be given by a single joint expert only.
(7) If the parties cannot agree who should be the single joint expert, the Registrar of Tribunals or the Chair may—
(a) nominate the expert from a list presented by the parties, or
(b) direct that the expert be nominated in another specified manner.
(8) Where a single joint expert is to be used, the parties should try to agree joint instructions, failing which each party may give instructions to the expert provided that at the same time a copy of those instructions is sent to the other party.
(9) A party may put written questions to any expert for the purpose of clarifying the expert’s report.
An expert’s answers to written questions are to be treated as part of the expert’s report.
Where an expert does not answer a written question the Registrar of Tribunals or the Chair may direct that part or all of the expert’s evidence may not be relied upon.
(10) An expert may not give oral evidence at a hearing unless permission has previously been given by the Registrar of Tribunals or the Chair.