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UK fertiliser bomb plot
Six arrests in UK and one each in US, Pakistan and Canada

As the plot appeared to move towards its final stages and a possible attack, police acted.

On 29 March, Khawaja was arrested in Canada. Hours later, six of the seven British suspects were in custody.

Amin, the final UK suspect, was held in Pakistan in early April - where he claims he was tortured. He was returned to the UK a year later.

Babar, who had gone back to the US, was arrested in New York. He turned supergrass and was central to the trial.

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