Sch 4 para 2
(1) For the purpose of proceedings in England or Wales or in Northern Ireland before— (a) the Investigation Committee; (b) an Interim Orders Tribunal ; or (c) a Medical Practitioners Tribunal , the Committee or Tribunal may administer oaths, and any party to the proceedings may issue a writ of subpoena ad testificandum or duces tecum, but no person shall be compelled under any such writ to produce any document which he could not be compelled to produce on the trial of an action. (2) Section 36 of the Senior Courts Act 1981 or section 67 of the Judicature (Northern Ireland) Act 1978 (which provide a special procedure for the issue of such writs so as to be in force throughout the United Kingdom) shall apply in relation to proceedings before the Investigation Committee, an Interim Orders Tribunal or a Medical Practitioners Tribunal in England and Wales or, as the case may be, in Northern Ireland as those provisions apply in relation to causes or matters in the High Court or actions or suits pending in the High Court of Justice in Northern Ireland. (3) For the purpose of proceedings before the Investigation Committee, an Interim Orders Tribunal or a Medical Practitioners Tribunal in Scotland, the Committee or Tribunal may administer oaths and the Court of Session shall on the application of any party to the proceedings have the like power as in any action in that court— (a) to grant warrant for the citation of witnesses and havers to give evidence or to produce documents before the Committee or Tribunal and for the issue of letters of second diligence against any witness or haver failing to appear after due citation; (b) to grant warrant for the recovery of documents; and (c) to grant commissions to persons to take the evidence of witnesses or to examine havers and receive their exhibits and productions.