‘Challenging the award: serious irregularity. (1) A party to arbitral proceedings may (upon notice to the other parties and to the tribunal) apply to the court challenging an award in the proceedings on the ground of serious irregularity affecting the tribunal, the proceedings or the award. A party may lose the right to object (see section 73) and the right to apply is subject to the restrictions in section 70(2) and (3). (2) Serious irregularity means an irregularity of one or more of the following kinds which the court considers has caused or will cause substantial injustice to the applicant— (a) failure by the tribunal to comply with section 33 (general duty of tribunal); … (d) failure by the tribunal to deal with all the issues that were put to it; (3) If there is shown to be serious irregularity affecting the tribunal, the proceedings or the award, the court may— (a) remit the award to the tribunal, in whole or in part, for reconsideration, (b) set the award aside in whole or in part, or (c) declare the award to be of no effect, in whole or in part. The court shall not exercise its power to set aside or to declare an award to be of no effect, in whole or in part, unless it is satisfied that it would be inappropriate to remit the matters in question to the tribunal for reconsideration. (4) The leave of the court is required for any appeal from a decision of the court under this section.’
‘General duty of the tribunal. (1) The tribunal shall— (a) act fairly and impartially as between the parties, giving each party a reasonable opportunity of putting his case and dealing with that of his opponent …’