During a 30 year career with the Metropolitan Police, Masterclass leader Simon Dilloway was employed as an NTFIU team leader conducting financial investigations of high priority terrorist targets in conjunction with the British intelligence agencies and the anti-terrorist branch. He was the author of the definitive report on the costing and funding of the London Bombings on 7th July 2005, the findings of which were used in the UK Home Office Narrative Report on the attack, and was the lead financial investigator in the transatlantic airline bombing conspiracy (Operation Overt) investigationthat has recently resulted in four convictions at Woolwich Crown Court and probably saved the lives of over 3,000 people.