" Directions 19. - (1) The Tribunal may at any time, on the request of a party or of its own initiative, at a case management conference, pre-hearing review or otherwise, give such directions as are provided for in paragraph (2) below or such other directions as it thinks fit to secure the just, expeditious and economical conduct of the proceedings. (2) The Tribunal may give directions – … (d) requiring persons to attend and give evidence or to produce documents; (e) as to the evidence which may be required or admitted in proceedings before the Tribunal and the extent to which it shall be oral or written; … (k) for the disclosure between, or the production by, the parties of documents or classes of documents; (3) The Tribunal may, in particular, of its own initiative - (a) put questions to the parties; (b) invite the parties to make written or oral submissions on certain aspects of the proceedings; (c) ask the parties or third parties for information or particulars; (d) ask for documents or any papers relating to the case to be produced; (e) summon the parties' representatives or the parties in person to meetings."
"22. - (1) The Tribunal may control the evidence by giving directions as to - (a) the issues on which it requires evidence; (b) the nature of the evidence which it requires to decide those issues; and (c) the way in which the evidence is to be placed before the Tribunal. (2) The Tribunal may admit or exclude evidence, whether or not the evidence was available to the respondent when the disputed decision was taken ."
"77. … In our view the exercise of the discretion to allow new evidence by the Director at the appeal stage should take strongly into account the principle the Director should normally be prepared to defend the decision on the basis of the material before him when he took that decision. It is particularly important that the Director's decision should not be seen as something that can be elaborated on, embroidered or adapted at will once the matter reaches the Tribunal. It is a final administrative act, with important legal consequences, which in principle fixes the Director's position. In our view further investigations after the decision of primary facts, in an attempt to strengthen by better evidence a decision already taken, should not in general be countenanced."
"80. On the other hand, there may well be cases where the Tribunal is persuaded not to apply the presumption we have indicated. … the procedures of this Tribunal are designed to deal with cases justly, in close harmony with the overriding objective in civil litigation under Rule 1.1 of the Civil Procedure Rules. That includes, so far as practicable, ensuring that the parties are on an equal footing, saving expense, dealing with the case in ways which are proportionate, proceeding expeditiously, and allotting to the case an appropriate share of the court's resources. Those considerations may militate against permitting new evidence by the Director, but in some circumstances considerations of fairness may point in the other direction. An obvious example is where a party makes a new allegation or produces a new expert's report which the Director seeks to counter. 81. One factor that may well be relevant in this connection is the fairness of the appeal process itself. In accordance with the Act, the first occasion on which the Decision first receives full public judicial scrutiny is in this Tribunal. An appellant will often have submitted voluminous pleadings, witness statements, and documents unconstrained by the evidence presented to the Director. The Director, at the administrative stage, may not always be able to foresee (although of course he should endeavour to do so) from what direction or in what strength an attack might come at the appeal stage. A situation whereby the appellant could always have a "free run" before the Tribunal, but the Director was always confined to the material used in the administrative procedure could lead to a significant lack of balance and fairness in the appeal process."