In pictures: The NatWest Three

July 13 2006: Giles Darby, one of the three former Natwest bankers, arrives at Croydon police station before being extradited to the US Photograph: Andrew Parsons/PA

July 12 2006: David Bermingham at home in the UK, shortly before his extradition to the US after the failure of a last-ditch attempt by MPs to keep the three men in the country Photograph: Tim Ockenden/PA

July 14 2006: Gary Mulgrew leaves the federal courthouse in Texas after making his first court appearance Photograph: David J Philip/AP

Houston, Texas, November 28 2007: (Left-to-righ), Giles Darby, lawyer Reid Figel, Gary Mulgrew and David Bermingham face the press after the three plead guilty to wire fraud at the Bob Casey courthouse Photograph: Dave Einsel/Getty

The Grosvenor Place UK headquarters of Enron in London Photograph: Martin Godwin/Freelance

February 7 2002: Former Chief Financial Officer of Enron, Andrew Fastow, is sworn in during a Congressional investigation in Washington into the company. He declined to answer questions from the subcommittee 'on the advice of my counsel' Photograph: Dennis Cook/AP

August 21 2002: Michael Kopper (R), formerly managing director of Enron Global Finance, leaves the federal courthouse in Houston, Texas, after pleading guilty to money laundering and wire fraud Photograph: David J Phillip/AP