Announcing the court’s decision on Wednesday (16 April), Supreme Court judge Lord Hodge said the 2010 Equality Act’s definition of a woman is based on biological sex.

“The unanimous decision of this court is that the terms woman and sex in the Equality Act 2010 refer to a biological woman and biological sex,” he said.

“But we counsel against reading this judgement as a triumph of one or more groups in our society at the expense of another, it is not,” he added, noting that trans people still have protection under the law.