Paul Diamond was instructed to represent Celestina Mba who wished to observe Sunday as a Sabbath day. The case involved issues on the meaning of ‘Group disparity‘, or whether the case of Eweida & Others v United Kingdom granted individuals’ protection. The Employment Tribunal had held that Sunday Sabbath rest was not a core component of the Christian faith; the Court of Appeal gave an important ruling in favour of religious liberty and reversed this finding, but Ms Mba did not win on the facts.