S.A. Cases Cited :
Cinnamond v British Airports Authority [1980] 1 WLR 582 (CA)
:
Metal & Allied workers Union v Castell NO 1985 (2) SA 280 (D)
:
Council of Civil Service Union v Minister for the Civil Service (the GCHQ case) [1984] 3 All ER 935 (HL)