The UK’s Supreme Court has ruled that “man”, “woman” and “sex” in the Equality Act 2010 refer to sex, not self-ID or paperwork (gender-recognition certificates). This agreed with our legal interpretation. We have published new guidance and are in the process of updating our publications to reflect the judgment. We are also working to provide answers to the questions we're hearing from supporters and the media. We will publish these as soon as possible.

Written intervention to the Supreme Court on the definition of sex

Sex Matters, represented by Ben Cooper KC and David Welsh, is intervening in the appeal in the case of For Women Scotland v Scottish Ministers, which will be heard by the Supreme Court on 26th and 27th November 2024. We argue that “sex” in the Equality Act 2010 should be construed as referring to biological sex.

See also the six-page briefing summarising our key arguments.