H3.—(1) A court hearing an appeal under Regulation H5 or a tribunal hearing an appeal under Regulation H6 may, if they consider that the evidence before the medical authority who has given the final decision was inaccurate or inadequate, refer the decision of that authority to him for reconsideration in the light of such facts as the court or the tribunal may direct, and the medical authority shall accordingly reconsider his decision and, if necessary, issue a fresh certificate which, subject to any further reconsideration under this paragraph, shall be final.
(2) The police authority and the claimant may, by agreement, refer any final decision of a medical authority who has given such a decision to him for reconsideration on fresh evidence, and he shall accordingly reconsider his decision and, if necessary, issue a fresh certificate, which, subject to any further reconsideration under this paragraph or paragraph (1), shall be final.
(3) If a court or tribunal decide, or a claimant and the police authority agree, to refer a decision to the medical authority for reconsideration under this Regulation and that medical authority is unable or unwilling to act, the decision may be referred to a duly qualified medical practitioner selected by the court or tribunal or, as the case may be, agreed upon by the claimant and the police authority, and his decision shall have effect as if it were that of the medical authority who gave the decision which is to be reconsidered.
(4) In this Regulation a medical authority who has given a final decision means the selected medical practitioner, if the time for appeal from his decision has expired without an appeal to a medical referee being made, and the medical referee, if there has been such an appeal.