"… a person discriminates against a woman if – (a) on the ground of her sex, he treats her less favourably then he treats or would treat a man …"
"in the application of sub-section (1) no account shall be taken of special treatment afforded to women in connection with pregnancy or childbirth."
"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) … (c) … (d) must be such that the relevant circumstances in the one case are the same, or not materially different, in the other."
"This Directive shall be without prejudice to provisions concerning the protection of women, particularly as regards pregnancy and maternity. A woman on maternity leave shall be entitled, after the end of her period of maternity leave, to return to her job or to an equivalent post on terms and conditions which are no less favourable to her and to benefit from any improvement in working conditions to which she would be entitled during her absence. Less favourable treatment of a woman related to pregnancy or maternity leave within the meaning of Directive 92/85 EEC [i.e. the Pregnant Workers Directive] shall constitute discrimination within the meaning of this Directive."
"In any circumstances relevant for the purposes of a provision to which this sub-section applies, a person discriminates against a woman if – (a) at a time in a protected period, and on the ground of the woman's pregnancy, the person treats her less favourably than he would treat her had she not become pregnant ; or (b) On the ground that the woman is exercising or seeking to exercise, or has exercised or sought to exercise, a statutory right to maternity leave, the person treats her less favourably than he would treat her if she was neither exercising nor seeking to exercise, and had neither exercised nor sought to exercise, such a right ."
"(1) An employee has the right not to be subjected to any detriment by any act, or any deliberate failure to act, by his employer done for a prescribed reason.
"… In circumstances such as those of this case, to deny a female employee the right to have her performance assessed annually would discriminate against her merely [ sic ] in her capacity as a worker because, if she had not been pregnant and had not taken the maternity leave which she was entitled, she would have been assessed for the year in question and could have therefore qualified for promotion."
"It must therefore be held that a woman who is accorded unfavourable treatment regarding her working conditions, in that she is deprived of the right to an annual assessment of her performance and, therefore, of the opportunity of qualifying for promotion as a result of absence on account of maternity leave, is discriminated against on grounds of her pregnancy and her maternity leave. Such conduct constitutes discrimination based directly on grounds of sex within the meaning of Directive 76/207."
"It must also be borne in mind that, in determining the scope of any derogation from an individual right such as the equal treatment of men and women provided for by the directive, the principle of proportionality, one of the general principles of law underlying the Community legal order, must be observed. That principle requires that derogations remain within the limits of what is appropriate and necessary for achieving the aim in view … ."
"It follows that if we take the view that the score was unfairly inflated, it was not within the range of reasonable responses and therefore it was not only a case of discrimination against the Claimant on the grounds of sex but also unfair dismissal."
"Unfortunately the Respondent's witness today, George Bacon, who was in charge of the process and had to make a value judgment on the Claimant's practice group priority/specialism, had not worked with the Claimant for some time and the remainder of the apparent scores for the Claimant had been derived from historical data assembled by the Respondent's Human Resources Team. Until this hearing the Claimant had no opportunity (unlike those involved) to question these assessments, which the Respondent is now saying limits the Claimant's right to compensation. Indeed Mr. Bacon described the process in his evidence as speculative."
"36. The appeal tribunal appear to regard the presence of a need to speculate as disqualifying an employment tribunal from carrying out its statutory duty to assess what is just and equitable by way of compensatory award. Any assessment of a future loss, including one that the employment will continue indefinitely, is by way of prediction and inevitably involves a speculative element. Judges and tribunals are very familiar with making predictions based on the evidence they have heard. The tribunal's statutory duty may involve making such predictions and tribunals cannot be expected, or even allowed, to opt out of that duty because their task is a difficult one and may involve speculation. Giving judgment in the leading case on loss of earning capacity, Moeliker v A Reyrolle & Co Ltd[1976] ICR 253 , an important head of damage in personal injury cases, Stephenson LJ when seeking words to define the correct approach to be followed stated, at p 265: "
"(1) In assessing compensation the task of the tribunal is to assess the loss flowing from the dismissal, using its common sense, experience and sense of justice. In the normal case that requires it to assess for how long the employee would have been employed but for the dismissal. (2) If the employer seeks to contend that the employee would or might have ceased to be employed in any event had fair procedures been followed, or alternatively would not have continued in employment indefinitely, it is for him to adduce any relevant evidence on which he wishes to rely. However, the tribunal must have regard to all the evidence when making that assessment, including any evidence from the employee himself. (He might, for example, have given evidence that he had intended to retire in the near future.) (3) However, there will be circumstances where the nature of the evidence which the employer wishes to adduce, or on which he seeks to rely, is so unreliable that the tribunal may take the view that the whole exercise of seeking to reconstruct what might have been is so riddled with uncertainty that no sensible prediction based on that evidence can properly be made. (4) Whether that is the position is a matter of impression and judgment for the tribunal. But in reaching that decision the tribunal must direct itself properly. It must recognise that it should have regard to any material and reliable evidence which might assist it in fixing just compensation, even if there are limits to the extent to which it can confidently predict what might have been; and it must appreciate that a degree of uncertainty is an inevitable feature of the exercise. The mere fact that an element of speculation is involved is not a reason for refusing to have regard to the evidence. … (7) Having considered the evidence, the tribunal may determine: (a) that if fair procedures had been complied with, the employer has satisfied it - the onus being firmly on the employer - that on the balance of probabilities the dismissal would have occurred when it did in any event: the dismissal is then fair by virtue of section 98A(2); (b) that there was a chance of dismissal but less than 50%, in which case compensation should be reduced accordingly; (c) that employment would have continued but only for a limited fixed period. The evidence demonstrating that may be wholly unrelated to the circumstances relating to the dismissal itself, as in O'Donoghue v Redcar and Cleveland Borough Council[2001] IRLR 615 ; (d) that employment would have continued indefinitely. However, this last finding should be reached only where the evidence that it might have been terminated earlier is so scant that it can effectively be ignored."