British Swimming have changed their guidance on changing room access after parents raised concerns over a transgender pool official using the women's changing room at the same time as young girls during a teenage swimming competition.

Anne Coombes, who last week blasted a hotel spa for not giving her a key to a female changing room, was volunteering at the British Summer Championships which was held at the Ponds Forge International Sports Centre in Sheffield.

Parents complained that both they and their daughters felt 'uncomfortable' as Ms Coombes, a 65-year-old trans woman, used the female changing rooms as a walkthrough during the competition which finished yesterday.

The outcry from parents led to British swimming changing its guidelines to ban any officials or volunteers using the changing room as a walkthrough.

One parents, who wished to remain anonymous, told The Telegraph: 'My daughter was in the changing rooms when this person walked through. And then came back again to use the toilets.

This is a repeat offender troon, he seems to have a fixation on using women’s facilities and uses social media to shame people and organisations which stand in his way.

Should probably have hard drive checked.