A trans Metropolitan Police volunteer officer has been found guilty of raping and sexually assaulting a young girl.

James Bubb, 27, who now identifies as a woman named Gwyn Samuels, groomed one of his two victims online before sexually assaulting her when she was just 12 years old.

A trial at Amersham Law Courts heard the officer sexually assaulted the girl in public shortly before her 13th birthday and was forced to pull his trousers up after a dog walker went past him.

Jurors were told Bubb was violent towards the girl when he raped and sexually abused her in her early teens - with the victim telling police he choked and punched her.

The 27-year-old defendant was also found guilty of raping a woman he met online while posing as a 16-year-old girl.