A former pupil of Haverstock School is believed to be in an East African prison amid claims he could have operated as an international terrorist.
The Home Office has banned Mahdi Hashi from Britain, listing him as threat to national security.
But his family are demanding answers from the government after what they say is a decade of unexplained “harassment” by the secret services. They say the 23-year-old, who came to Camden Town aged six from Somalia, was plagued by spooks years after he refused to work for them as an “informer”.