A quarter of the around 900 British citizens of national security concern who have left to the region since 2013 are still yet to return, according to the Home Office .
Angus McCullough KC has acted for the 24-year-old as she attempts to win back her British citizenship, which was stripped when she fled to join ISIS aged 15 in 2015.
The Londoner was 15 when she travelled to Istanbul in Turkey from Gatwick Airport to join ISIS in 2015 with her close friends at Bethnal Green Academy.