The court was expected to begin formal hearings on espionage charges on Friday. Ricketson’s lawyer was not present, citing pressing business elsewhere.
Prosecutors recently finished a year-long investigation, combing for evidence that might support charges of espionage tied to the now-dissolved opposition Cambodian National Rescue Party (CNRP).
The trial of Australian film-maker and accused spy James Ricketson has been postponed in a Cambodian court after a bench of three judges granted him more time to prepare his defence.