Court officials have confirmed that the trial of former Khmer Rouge leader Kaing Guek Eav, better known by his alias Duch, will be delayed until next year due to legal delays. The much anticipated trial of the S-21 prison chief, which was expected to begin a month ago, still requires pretrial submissions by sections of the court, a press release said Thursday.  "Such further filings will require additional time for all parties to respond," the statement said. Duch is charged with war crimes and crimes against humanity and has been in jail for nine years.