MP Allan Dorans is due to meet Prime Minister Boris Johnson in a fight over justice for a murdered police woman.

The Ayr Carrick and Cumnock MP was working as a police sergeant in London’s west end when Yvonne Fletcher was shot in the city on April 17, 1984.

The 25-year-old was gunned down outside the Libyan Embassy. No one was ever charged.

Mr Dorans will meet with the Prime Minister on July 21 to ask for the criminal investigation to be re-opened.

Describing the reaction to her death, Mr Dorans said: “We were devastated. It sent shockwaves through the police and through the country.”

The SNP politician was asked to get involved by his friend, former metropolitan police officer John Murray. Mr Murray, from the Aberdeen area, was standing next to Yvonne when she was shot.

He has been campaigning for a prosecution for 36 years.

Mr Dorans said: “I am delighted to use my position as an MP to help John Murray bring to justice the people responsible for the death of Yvonne Fletcher.”

It is hoped previously withheld files could be made public – to help reveal what happened.