The Metropolitan Police worked to a major incident plan to provide co-ordination, control and forensic and investigative resources after the 7 July 2005 bombings in 2005, though in the aftermath of multiple attempted attacks two weeks later officers mistook Jean Charles de Menezes for a suspected terrorist as he boarded a train and shot him dead in a deployment of Operation Kratos. In 2006, officers from the Met and other forces foiled a Transatlantic aircraft bomb plot, whilst Operation Trident officers also made the Met's largest ever seizure of firearms after a series of raids in Dartford, Kent named Operation Mokpo. Met bomb disposal officers defused a two car bombs in central London in 2007, with the perpetrators subsequently investigated and convicted. A 2007 cold case review of Stephen Lawrence's murder found a tiny speck of Lawrence's blood on a jacket belonging to Dobson and one of Lawrence's hairs on trousers belonging to Norris, leading to the conviction of Gary Dobson and David Norris on 3 January 2012. The pair were sentenced to life imprisonment, with a minimum term of 15 years 2 months for Dobson and 14 years 3 months for Norris.