“In any circumstances relevant for the purposes of a provision to which this subsection applies, a person discriminates against a woman if – …… (b) he applies to her a provision, criterion or practice which he applies or would apply equally to a man, but- (i) which puts or would put women at a particular disadvantage when compared with men, (ii) which puts her at that disadvantage, and (iii) which he cannot show to be a proportionate means of achieving a legitimate aim.”
“Each of the following comparisons, that is – (a) a comparison of the cases of persons of different sex under section 1(1) or (2) (b) ……… ……… must be such that the relevant circumstances in the one case are the same, or not materially different in the other.”
“an apparently neutral ….provision, criterion or practice….in reality has a disproportionate adverse impact upon a particular group. It looks beyond the formal equality achieved by the prohibition of direct discrimination towards the more substantive equality of results. A smaller proportion of one group can comply with the requirement, condition or criterion or a larger proportion of them are adversely affected by the rule or practice. This is meant to be a simple objective enquiry. Once disproportionate adverse impact is demonstrated by the figures, the question is whether the rule or requirement can objectively be justified.”
“Suppose, for example, a rule requiring that trainee hairdressers be at least 25 years old. The fact that more women than men want to be hairdressers would not make such a rule discriminatory. It would have to be shown that the impact of such a rule worked to the comparative disadvantage of would-be female or male hairdressers as the case might be.”
“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 pool had to comprise all those affected by the condition.”
“The test of indirect discrimination focuses on the effect that the requirement objected to has on the pool of potential candidates. It can only have a discriminatory effect within the two statutes if a significant proportion of the pool are able to satisfy the requirement. Only in that situation will it be possible for the requirement to have a disproportionate effect on the men and the women, or the racial groups, which form the pool.”
“50. Now it is not for me to say this stage of ( sic) facts will be proved in relation to any suggested pool; and what conclusions in fact and law a Tribunal hearing this case might make in relation to that crucial matter. But the point is that the claimant is offering to prove a particular pool which may be the right one and may show discrimination. In my opinion, that, on its own, is sufficient to defeat the argument that this claim has no reasonable prospect of success, because it has “crossed the line of possibility”. 51. In any event, I am fortified in the view that the decision in Chaudhray does not have the effect contended for by the respondent for a number of other reasons. Firstly it was a race discrimination case. Secondly, it concerned access to a benefit. Thirdly, the remarks relied on are obiter . Fourthly if the principle said to be enunciated was a general application, it is surprising that the line of defence is ( is ) now being argued for has not materialised in any reported decision concerning applications for part-time working by women returning from maternity leave. 52. Finally, I am satisfied that the present case is not described as an “access to benefit” case (permission to work part-time). It is instead more properly categorised as an “imposition of an obligation” case (requirement to work full- time) (see Rutherford paragraph 78). Once that is understood the potentially discriminatory nature of the PCP becomes clear.”