"It is however, common ground that the discretion to grant leave is a judicial discretion to be exercised in a judicial manner, i.e., in a manner which satisfies the requirements of relevance, reason, justice and fairness inherent in all judicial discretions."
"In other cases an industrial tribunal may reasonably take the view that the proposed amendment is not sufficiently substantial or controversial to justify seeking representations from the other side and may order the amendment ex parte without doing so. If that course is adopted and the other side then objects, the industrial tribunal should consider those objections and decide whether to affirm, rescind or vary the order which has been made."
"A notice of appearance may generally be amended, either before or at the hearing, but only with the leave of the tribunal. The guiding principle is that it is desirable that tribunal proceedings should be as flexible as possible, having regard to the interests of both parties and the justice of the case. These criteria would not be met if one party were to be precluded from presenting his case in the manner he thinks most appropriate by too strict an adherence to the rules of pleading. Accordingly, a respondent will not normally be prevented from amending his notice of appearance unless, as will be seen below, the application is made at a late stage of the proceedings. If, as a result of any such amendment, a postponement or adjournment of the hearing is necessary, the respondent may be ordered to pay the costs incurred by the other party (see r 12(4)) [of the Employment Tribunals Rules of Procedure]."