LONDON Mitch Richmond Kings Jersey , Feb. 28 (Xinhua) -- Britain's intelligence services have long utilized tactics that have proved "ineffective," with a series of security failures showing a "worrying pattern," the country's former shadow Home Secretary David Davis has said.
"One of the results of this policy is that it leaves known terrorists both to carry out evil deeds and to recruit more conspirators. As a result, the problem on the street grows progressively larger," Davis wrote on Saturday's edition of the Guardian newspaper.
He said it was "extraordinary" that Mohammed Emwazi, the masked "Jihadi John" who was pictured in a number of videos released by the Islamic State (IS) showing beheadings of western hostages, "escaped the attentions of the security services."
Mohammed Emwazi, a university-educated Briton from west London, was believed to have been known by British intelligence services before he fled to Syria and joined the IS.