Case description
Background
[1] The decision of the UK Supreme Court in For Women Scotland v Scottish Ministers (“FW2”), issued on 16 April 2025, addressed the question of the definition of the words “woman”, “man” and “sex” in the Equality Act 2010. The Supreme Court held that these refer to biological sex, and do not include “certificated sex”, that being the sex acquired by a person with a gender recognition certificate under the Gender Recognition Act 2004.
The Current Case
[2] In February 2024, the Scottish Prison Service published its Policy for the Management of Transgender People in Custody: Operational Guidance. That guidance allows, in some circumstances, for a transgender prisoner to be held in a prison for the opposite biological sex. For Women Scotland challenge the guidance.
[3] The case involves consideration of:
- the Equality Act 2010, in the light of the decision of the Supreme Court in FWS2
- the Prisons and Young Offenders Institutions (Scotland) Rules 2011, in particular rule 126, which requires there to be provision of separate accommodation for male and female prisoners
- the Human Rights Act 1998 and the European Convention on Human Rights, in particular Articles 8 (right to respect for private and family life) and Article 14 (prohibition of discrimination) of the European Convention on Human Rights
- the Scotland Act 1998 and the extent of the Scottish Ministers’ powers
For Women Scotland’s Argument
[4] For Women Scotland argue that the guidance mis-states the law, and does not accurately reflect the Equality Act 2010, following the decision of the Supreme Court in FWS2 because it assumes that some male prisoners may serve their sentences within the women’s prison estate. They argue that the Scottish Ministers require to provide women-only prison accommodation, separate and distinct from that provided for male prisoners. They argue that the defined protected characteristic of gender reassignment under the Equality Act 2010 cannot be relied upon to allow male prisoners to be accommodated in the women’s prison estate. For Women Scotland refer to the requirement in the Equality Act 2010, at section 29, that a person exercising a public function must not do anything constituting discrimination, harassment or victimisation.
[5] For Women Scotland argue that the directions in the guidance are contrary to rule 126 in the 2011 Rules. They also argue that, with the guidance, the Scottish Ministers are acting outside their powers, because equal opportunities are a reserved matter under the Scotland Act 1998. For Women Scotland do not accept that there is a positive obligation, by reference to the Article 8 rights of transgender prisoners, to allow prisoners of one sex to be accommodated in prisons reserved for the opposite sex. They also resist the Scottish Ministers’ arguments in relation to the interpretation of the Equality Act 2010.
The Scottish Ministers’ Argument
[6] The Scottish Ministers take issue with the way in which For Women Scotland challenge the guidance and argue that there must be a claim of unlawful sex discrimination or harassment, and that that cannot be assumed. For that reason, they argue that a relevant case has not been established against them.
[7] In response to the arguments for For Women Scotland, the Scottish Ministers argue that a rule which would never permit a transgender person to be accommodated in a prison reserved for the opposite sex would violate the Convention rights of at least some prisoners, in particular under Articles 8 and 14 ECHR, They argue that such a rule would mean that they would be acting in a way that is incompatible with the European Convention on Human Rights.
[8] The Scottish Ministers also argue that they are exercising a core public function and that they may do that, notwithstanding it gives rise to sex discrimination, where that is required by another statute. The Scottish Ministers’ position is that rule 126 can apply in a way that permits transgender prisoners to be accommodated in a prison for the opposite biological sex.
[9] The Scottish Ministers put forward a further argument to the effect that the Equality Act 2010, and specifically paragraph 26 of Schedule 3, can be read in a way that allows services to be provided “primarily” rather than exclusively for persons of the same sex, where that is necessary to avoid a breach of the Convention rights of transgender persons of the opposite biological sex. If the provision cannot be read in that way, the Scottish Ministers argue that there should be a declaration of incompatibility in terms of section 4(2) of the Human Rights Act 1998.
[10] The Scottish Human Rights Commission and the Equality and Human Rights Commission have been authorised by the court to provide both written and oral submissions. They act in the public interest and are known as “interveners”.
The Outer House will hear the substantive hearing on 3, 4 and 5 February 2026 at 10am.