Should Shamima Begum be allowed to return to the UK to argue her case?

A new book says Met police knew she was helped to join IS by a Canadian spy, reinforcing concerns she was victim of trafficking

It is not new - although it is eyecatching - to report that Shamima Begum, then 15, was helped to travel to Syria and join Islamic State by a Canadian agent. Mohammed al-Rashed was picked up by the Turkish authorities in March 2015, and said at the time he was an informant for Canadian intelligence, and had helped Begum travel from Istanbul airport to the Syrian border a few days earlier.

What is new is the suggestion that the Metropolitan police knew about Canada's behind-the-scenes involvement for some time. A book, The Secret History of the Five Eyes, out this week, reveals that Canadian intelligence officers went shortly after to the British police to admit their connection to Rashed, boosting the argument that the teenager from Bethnal Green and her two friends were in fact trafficked.