"the applicant was not unfairly dismissed by the respondent.
"5. The appellant appeals on the following question of law: (i) Whether the Tribunal were wrong in directing themselves that on a policy issue concerning Health and Safety, they were entitled to find that it was paramount to anti-discriminatory considerations.
"15 As a result our findings are as follows. (i) The respondent's change of policy on the wearing of hard hats dates from June 1985 following a serious accident at Shelton which led to new recommendations for the compulsory wearing of hats, except for Sikhs.
"that the industrial tribunal were justified in taking into account both the risk of injury and the possibility of ensuing liability of the employers if the applicant did not wear protective headgear, even though his objection was based on genuine religious grounds, and the fact that the requirement would be more difficult to enforce if an exception was made for him; that whether a discriminatory requirement was justified was a question of fact for the industrial tribunal since the tribunal's conclusion was supported by the evidence its decision that there was no unlawful discrimination was not perverse."
"It seems to us that it would be remarkable if conscientious employers, aware of a real risk to their employee in the place of work they provide for him, and aware that they can eliminate or reduce that risk by insisting on a safety requirement, are precluded by law from such insistence. We accept that for the reasons given by Mr Goudie the chances of an employee or his personal representative suing successfully for damages in the event of an accident are not high because of the defences open to the employers that having provided the protective headgear and urged that it be worn, it has not been in reach of its duty of care and that the damage to the employee was not caused by the breach. But we find ourselves unable to say that there is only a fanciful (to use Mr Goudie's term) possibility that the employers will be held liable in the particular circumstances that they had knowingly exposed an employee whom they themselves believe to be inadequately protected to a real risk known to them. As for criminal liability under section 2(1) of the Health and Safety at Work etc. Act 1974 , we think that the industrial tribunal was right to find significance in the fact that the employers' health and safety officer had been unable to obtain an assurance from the Health and Safety Executive as to their position if they permitted the applicant to work without protective headgear. Mr Goudie has laid stress on the qualification on the statutory duty of an employer to ensure the health, safety and welfare at work of his employees, viz. `so far as is reasonably practicable.' It is of course arguable, as Mr Goudie suggests, that it is not reasonably practicable to insist on a safety measure with which the employee for genuine religious reasons cannot comply; but the contrary is also arguable, as the absence of an assurance from the executive suggests."