Naseer played a key role in sending Ishaaq Hussain, Khan, Naweed Ali and Khobaib Hussain to Pakistan to receive training.

BBC: Terror plot: Jail terms for Birmingham bomb plotters

Khobaib Hussain, Ishaaq Hussain and Ali were forced to return just three days later after a relative got wind of the real reason for their journey.

BBC: Terror plot: Jail terms for Birmingham bomb plotters

All of these have already pleaded guilty to preparing for acts of terrorism: Ishaaq Hussain, 21, Shahid Khan, 21, Naweed Ali, 25, and Khobaib Hussain, 22.

BBC: Birmingham men guilty of mass bomb plot