7 July 2005 London bombings
Three of those arrested, including Khan's widow, were released on 15 May. The fourth person who was arrested, Khalid Khaliq, an unemployed father of three children, was charged on 17 July 2007 with having an al-Qaeda training book, but the charge was not related to the 2005 London attacks. These charges usually carry a maximum prison sentence of 10 years.