David Headley, 49, who was born in Washington to a Pakistan diplomat father and an American mother, was arrested in Chicago in October. He is accused of reconnoitring targets in India and Europe for Lashkar-e-Taiba (LeT), the Pakistan-based terror group behind the Mumbai attacks and of having links to al-Qaeda. He has denied the charges.

He came to the attention of the US security services in 1997 when he was arrested in New York for heroin smuggling. He earned a reduced sentence by working for the US Drug Enforcement Agency (DEA) infiltrating Pakistan-linked narcotics gangs.

Indian investigators, who have been denied access to Mr Headley, suspect that he remained on the payroll of the US security services — possibly working for the Central Intelligence Agency (CIA) — but switched his allegiance to LeT.

http://www.timesonline.co.uk/tol/news/world/asia/article6960182.ece