"It appears to the court that McMillon has unique knowledge of relevant issues in this litigation that only he can explain," Hickey wrote "It appears to the court that McMillon has unique knowledge of relevant issues in this litigation that only he can explain," Hickey wrote. A deposition could last four hours, she added.Wal-Mart spokesman Randy Hargrove said: "We are reviewing the order and contemplating our next steps."Jason Forge, a lawyer for the lead plaintiff City of Pontiac General Employees' Retirement System, said in an email: "We're determined to try this case in court." Wal-Mart's market value slid $17 billion over three days in April 2012 after the New York Times reported the alleged bribery and said it had been first discovered internally in 2005.Shareholders accused Wal-Mart and Mike Duke, who preceded McMillon as chief executive, of downplaying the scheme even after learning about the Times' investigation.