Three British bankers may be extradited to the United States to face Enron-related fraud charges, the High Court ruled Tuesday in a judgment marking the first test case of controversial laws introduced to speed up the transfer of suspected terrorists.

David Bermingham, Gary Mulgrew and Giles Darby, former executives at Royal Bank of Scotland Group PLC unit Greenwich NatWest, had argued that because the majority of the alleged offenses took place in Britain any trial should be held there and that their deportation to the United States would contravene European human rights laws.