Aine Lesley Davis, one of the British jihadis who brutalised and beheaded western hostages in Syria, has been convicted in Turkey on terrorism charges and jailed for seven and a half years. Davis, 35, is suspected by western intelligences services of being a member of the cell – along with Mohammed Emwazi, also known as Jihadi John – that oversaw the beheadings of hostages including the British aid workers Alan Henning and David Haines and the US journalists Steven Sotloff and James Foley.

He was found guilty at a court in Silivri, a town 45 miles west of Istanbul, of being a member of a terror organisation. Officials believe he had been plotting an attack in Turkey. The UK Foreign Office said it was aware of his conviction…[+]