An organisation associated with the attacks is the group al-Muhajiroun . According to the BBC , some of the perpetrators became interested in jihad during the time they were involved with al-Muhajiroun . According to Professor Anthony Glees , director of the Brunel Centre for Intelligence and Security Studies – The fertiliser bomb trial has given us the smoking-gun evidence that groups like al-Muhajiroun have had an important part in radicalising young British Muslims , and that this can create terrorists . Al-Muhajiroun was disbanded by its founder Omar Bakri Mohammed in 2004 . Shortly after 7 July 2005 London bombings , Prime Minister Tony Blair " announced the group would be banned as part of a series of measures against condoning or glorifying terrorism . "
7 July 2005 London bombings
7 July 2005 London bombings
Operation Crevice