Girlguiding has refused to accept the Supreme Court gender ruling with boys being allowed to use female camp rooms and leaders not obliged to tell the parents, a whistleblower has claimed. The Supreme Court unanimously ruled on April 16 that the terms “woman” and “sex” in the Equality Act 2010 refer to “a biological woman and biological sex”. The charity, the UK's largest girl-only youth organisation, has allegedly told volunteers that they should sideline the judgement.

Campaigner and psychotherapist James Esses shared the insider knowledge on X, branding the guidance as a “safeguarding nightmare”. Girlguiding is the UK's largest girl-only youth organisation PA The Supreme Court revealed the outcome last week PA Baroness Arlene Foster said: “I’m sorry to say that Girlguiding has completely lost its core values of instilling self esteem and confidence in girls and has thrown those concepts away to be edgy and ‘modern’. “As a former brownie, guide, young leader and guide leader, it makes me so sad.” Baroness Jacqueline Foster said that the organisation “needs to comply with the law”, and barrister Daniel ShenSmith For Women Scotland – the campaign group which challenged the Scottish legislation – responded to the claims.

“This is why none of us can stop,” they said. “But now that the law is behind us, organisations like @Girlguiding should be wary of continuing to put girls at risk.” Earlier this week, Sir Keir Starmer broke his silence on the Supreme Court’s ruling, stating that a “woman is an adult female". “I actually welcome the judgment because I think it gives real clarity,” he told ITV.

Trans activists took to Parliament Square to protest the latest landmark ruling by the Supreme Court on the definition of a woman GETTY