Evidence is emerging of the links between British intelligence and the two men suspected of killing a solider in Woolwich.
Michael Adebolajo was one of seven men arrested by Kenyan police after landing on an island off the Kenyan coast in November 2010.
Police claimed the men were travelling to Somalia to join the ranks of the al-Shabaab Islamist group. An intelligence tip-off allegedly led to the arrests.
Adebolajo’s family said he was detained and tortured before being deported back to Britain without charge.
They said that MI5 agents then “pestered” him to become an informant for them.
Other members of his family were also harassed.
When Abu Nusaybah, a friend of Adebolajo, repeated these allegations on Newsnight last week he was promptly arrested—in the studio.
Police said he was arrested on unrelated charges.
There are a number of cases of British intelligence officers involved in the interrogation of prisoners.
Habib Suleiman Njoroge, Yahya Suleiman Mbuthia and Omar Awadh Omar are trying to get information through the British courts about their interrogation by British intelligence officers.
British and American intelligence officers beat and punched them, hooded them, threatened them with firearms and told them they were to be flown to Guantánamo Bay.
Njoroge and Mbuthia were among a number of Kenyan Muslims detained in 2010 and rendered to Uganda.
Omar was kidnapped in a Nairobi shopping centre the same year and driven across the border to Uganda.
Omar said one of his interrogators, an English man who called himself Frank, became particularly angry and stamped on his bare feet.