White & Case and Jones Day are celebrating after the House of Lords blocked an attempt by the U.S. to extradite a British citizen accused of price fixing, bringing to an end one of the most high-profile white-collar crime investigations of recent years.

The Lords ruled Wednesday morning that White & Case client Ian Norris could not be extradited over his alleged involvement in the price fixing of carbon products before the Enterprise Act 2002 made price fixing a criminal offense in the U.K.