Ann Sinnott said that women were treated with contempt

A Labour councillor has resigned over a policy to allow transgender people access to women’s facilities.

Ann Sinnott stood down from Cambridge council claiming that the authority was treating women with contempt and was acting in “dereliction of the law”. She said a policy that resulted in single-sex facilities, such as toilets or changing rooms, being “abolished at a stroke” was undermining women’s rights and was a breach of the equality act.

The policy, which applies only to council property, states that “transgender people will not be excluded from gender-appropriate sex/single-sex segregated facilities”.

Sarah Brown, a transgender Lib Dem councillor who lost her seat to Ms Sinnott, put forward the policy. She is in a so-called polyamorous relationship with another Cambridge councillor, Zoe O’Connell.

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