In Panesar v The Nestle Co Ltd [1980] IRLR 64 CA, the Court of Appeal held that the respondents' rule forbidding beards in their chocolate factory was "justifiable" within the meaning of the Race Relations Act 1976, section 1(1)(b).
In Malik v British Home Stores [1980] ET/2901/79, the employment tribunal found that it was unlawful indirect race discrimination to require a Muslim woman of Pakistani origin to wear a uniform of an overall over a skirt.