“The first is the correct identity of the pool for determining disproportionate impact; the second is whether the statistical evidence which applies to that pool is sufficiently reliable for me to be able to draw any conclusions and, if so, what those conclusions are.”
“The requirement or condition under challenge in this case applies to all teachers, albeit in the case of pre-retirement teachers, only contingently … … the requirement not to be in receipt of a retirement pension and to be teaching part-time in order to be eligible for membership of the Teachers’ Pension Scheme is applied to all members of the teaching profession. The correct pool, therefore, must be the entirety of teachers, embracing those who can comply with it and those who cannot.”
“Those who are in the Teachers’ Pension Scheme but have not retired are uninterested in post-retirement rules … the pool consists of returners; the disadvantaged group within the pool is part-timers and the advantaged group is full-timers … … it is necessary in my view to choose a pool where the disadvantage could be illustrated and that did not occur if poured into the pool were all those under retirement age and working, whether full-time or part-time. To describe them as an advantaged group, for the purposes of juxtaposition against the disadvantaged group of part-time returners, is an abuse of language. These people had no advantage out of the post-retirement rule favouring full-timers; it simply did not apply to them. They could only distort the view of the pool … … For the purposes of this appeal it seems to me the only logical pool is as I have described it: returners … I do not accept as logical the pool … covering all those in the Teachers’ Pension Scheme. All those … are … affected by every rule of the Scheme but only returners have the offending rule applied to them.”
“… in general the relevant statistical comparison involves … taking as the pool ‘the workforce’ (ie the entire workforce) to whom the age limit is applicable, not taking just a small section of the workforce confined to those who are adversely affected by being over 65 or within 10 years of the age of 65.”
“essentially the same” as Lord Rodger and Baroness Hale (at paragraph 23; Lord Rodger: “essentially the same” as Baroness Hale (at paragraph 35); and Baroness Hale: “essentially the same” as Lord Scott and Lord Rodger (at paragraph 83). For his part, Lord Walker commented (at paragraph 70): “… the grounds on which my noble and learned friends would decide the appeal were not argued below or in this House. Nor do I find it easy to extract from their opinions a single easily-stated principle.”
“the appropriate groups for comparison … comprised all those still in the workforce at age 65.”
“76 … it matters not that there are other men and women who have left the workforce at an earlier age and are thus uninterested in whether or not they will continue to be protected. The people who want the protection are the people who are still in the workforce at the age of 65 … 77 … in my view we should not be bringing into the comparison people who have no interest in the advantage in question. 78. This approach, defining advantage and disadvantage by reference to what people want, chimes with [Canadian authority] … 82. The common feature is that all these people are in the pool who want the benefit – or not to suffer the disadvantage – and they are differentially affected by a criterion applicable to that benefit or disadvantage. Indirect discrimination cannot be shown by bringing into the equation people who have no interest in the advantage or disadvantage in question … ”
“The correct principle … is that the pool must be one which suitably tests the particular discrimination complained of … ”
“A pool so narrow that no comparison can be made at all is unlikely to serve this end; nor a pool so large that the comparison is no longer of like with like … ”
“For the purposes of disposing of an appeal, the Appeal Tribunal may (a) exercise any of the power of the body … from which the appeal was brought, or (b) remit the case to that body … ”