"(3) Subject to paragraph (4) below, the tribunal may set aside any decision or direction given in the absence of a party on such terms as it thinks just, on the application of that party or of any other person interested served at the appropriate tribunal centre within 14 days after the date when the decision or direction of the tribunal was released."
"(4) Where a party makes an application under paragraph (3) above and does not attend the hearing of that application, he shall not be entitled to have a decision or direction of the tribunal on the hearing of that application set aside."
"(1) The Tribunal may set aside a decision which disposes of proceedings or part of such a decision, and re-make the decision, or the relevant decision, if – (a) the Tribunal considers that it is in the interest of justice to do so; and (b) one or more of the conditions in paragraph (2) is satisfied (2) The conditions are – (a) … (b) … (c) there has been some … procedural irregularity in the proceedings; or (d) a party, or a party's representative, was not present at the hearing related to the proceedings."
"I enclose a copy of the Direction of the Tribunal, following the application made in this case. If you so wish, you are entitle to require the Tribunal to send you a written document containing any findings of fact and the reasons for the decision … . Such a request should be made within 14 days of the date of release of the Direction. If this application was heard in your absence and if you are dissatisfied with the outcome, you may, within 14 days of the date of the written direction, apply to have the direction set aside and the application reconsidered. Your request must give reasons for your failure to attend. The tribunal will consider your request and, if necessary, arrange for a hearing to decide the issue."
"ATEC – Means of Knowledge and JSL – can you confirm you have AB, Counsel at the rate of 5% as discussed. Also covering the JSL?" "
"The Tribunal acknowledges receipt of your letter of21 November 2008 . The Chairman has instructed that we treat your letter as an application under rule 26(4) and he says to draw your attention to the first main paragraph of the direction of10 November 2008 ."
"I hereby give notice that the hearing of the application listed below will take place … on7 January 2009 … . This will not be a hearing of the appeal. A hearing for directions (Application under Rule 26(4) of direction of10 November 2008 )"
"listed below", according to the notice provided by the parties, were the words- "
"1. ATEC … through P H Ross & Co, Chartered Accountants, apply under rule 26 … to set aside directions given in ATEC's absence at a hearing on4 November 2008 . The 4 November direction dismissed the appeal on grounds of non-compliance with an earlier direction of the Tribunal (to serve witness statements and a list of documents) on grounds of want of prosecution on the part of ATEC. 2. Neither ATEC nor P H Ross &Co attended the present hearing on 29 January of their rule 26(4) application. 3. In a letter of28 January 2009 to the Tribunal, P H Ross & Co said: "
"The plea of res judicata applies, except in special cases, not only to points on which the court was required by the parties to form an opinion and pronounce a judgment, but to every point which properly belong to the subject of litigation, and which the parties, exercising reasonable diligence, might have brought forward at the time … . The rule then is that, once an issue has been raised and distinctly determined between the parties, then, as a general rule, neither party can be allowed to fight that issue all over again. The same issue cannot be raised by either of them again in the same or subsequent proceedings except in special circumstances."
"… a party to a dispute who has lost the opportunity to have his case heard through the default of his own advisers to whom he has entrusted the conduct of a dispute on his behalf cannot complain that he has been the victim of a procedural impropriety or that natural justice has been denied to him, at all events when the subject matter of the dispute raises issues of private law between citizens. Is there any principle which can be invoked to lead to a different conclusion where the issue is one of public law and where the decision taken is of an administrative character rather than the resolution of a lis inter partes? I cannot discover any such principle and none has been suggested in the course of argument."
"The difficulty for the appellant in the instant case is that Al Mehdawi holds quite clearly that a failure on the part of a party to be present due to the negligence of the party's adviser gives no ground for quashing the decision."