British trader Tom Hayes arrives at Southwark Crown court in London on July 27, 2015 as the trial over alleged rigging of the London Interbank Offered Rate (Libor) continues. A British trader who worked for UBS and Citigroup was accused on May 26 of being the greedy 'ringmaster' of a conspiracy to rig global interest rates at his trial. Britain's Serious Fraud Office (SFO) alleges that Tom Hayes was the leader of more than a dozen traders it says worked to rig the London Interbank Offered Rate (Libor) between 2006 and 2010.  AFP PHOTO/Leon Neal        (Photo credit should read LEON NEAL/AFP/Getty Images)