"1. ... The only question we identify as reasonably arguable is: must a genuine material factor justifying a difference in pay under the Equal Pay Act, or a difference in treatment under theRace Relations Act 1976 , be in the mind of the person setting the pay scale at the relevant time?"
"25. There was no dispute that at the time of appointment Miss Spear mistakenly thought that the Applicant fell within the provisions relating to qualified teachers and assessed her accordingly. ... " and contrasted this with what was said in paragraphs 30 and 60 about why she was not paid the same as Mr Alpin: "30. We find that the Applicant was not placed on the top of the scale as she did not have qualifying teaching experience in accordance with the Order, and Mr Alpin did, as a qualified teacher, have that experience. ... … 60. We considered whether or not the Applicant had made out her case by comparing herself to Mr Alpin in respect of salary ... We concluded that the Respondent had made out a material factor defence pursuant tosection 1(3) of the Equal Pay Act 1970 . We concluded that the reason the Applicant was paid less than Mr Alpin was that the Applicant did not qualify for all the mandatory points available to a qualified teacher. Clearly, the decision to allocate points to her as a qualified teacher was mistaken, but having analysed the way in which the points were thus allocated, we were satisfied that maximum points could not be awarded as the Applicant did not qualify for the mandatory points in respect of qualifying teaching experience. Mr Alpin did so qualify. ..."
"Whenever an appeal is based on the perversity ground, this Tribunal ... should only interfere with the decision of the Industrial Tribunal where the conclusion of that Tribunal on the evidence before it is 'irrational', 'offends reason', 'is certainly wrong' or 'is very clearly wrong' or 'must be wrong' or 'is plainly wrong' or 'is not a permissible option' or 'fundamentally wrong' or 'is outrageous' or 'makes absolutely no sense' or 'flies in this face of properly informed logic'. This variety of phraseology is taken from a number of well-known cases which describe the circumstances in which this Tribunal (and higher courts) have characterised perversity. The result is that it is rare or exceptional for an appeal to succeed on the grounds of perversity. The reason why it is a heavy burden to discharge is that it has been recognised by those with wide experience and practical wisdom that there are many factual situations arising in the field of industrial relations, including sex discrimination, in which different conclusions may be reached by different tribunals, all within the realm of reasonableness. It is an area in which there may be no 'right answer'. The consequence of this approach, also approved in cases of high authority, is that it is not appropriate or fruitful to subject the language of the decision of the Industrial Tribunal to 'meticulous criticism' or 'detailed analysis' or to trawl through it with a 'fine-tooth comb'. What matters is the substance of the Tribunal's decision, looked at 'broadly and fairly' to see if the reasons given for the decision are sufficiently expressed to inform the parties as to why they won or lost the case and to enable their advisers to identify an error of law that may have occurred in reaching the conclusion. Viewed in that way, the decision of the Industrial Tribunal is not perverse."
"25. There was no dispute that at the time of appointment Miss Spear mistakenly thought that the Applicant fell within the provisions relating to qualified teachers and assessed her accordingly. Once this mistake was discovered, the Applicant's salary was not changed. Consequently, [sic] during her employment with the Respondent, she was paid a salary which was in excess of the top salary for unqualified teachers. 26. It is also noteworthy that, leaving aside the fact that the Applicant was not a qualfied teacher, she would not have qualified under the provisions of the Order for any teaching experience points as a qualified teacher as her experience was not within a school maintained by a local education authority in England and Wales, in an MOD school or within the European Economic Area. The crucial point is, however, that she was not a qualified teacher within the statutory definition."