Ben Roberts-Smith arrives at the Federal Court in Sydney (AAP Image/Dean Lewins)

Ben Roberts-Smith allegedly “wandered off whenever he wanted and did whatever he wanted” in Afghanistan, the Federal Court heard this morning, as the former soldier's defamation case against media organisations continues.  

This allegation was contained within a letter to Roberts-Smith from a colleague who had been questioned during an official inquiry into allegations of ADF war crimes in Afghanistan. Roberts-Smith emphatically denies it. 

The Victoria Cross winner is back in the witness stand as the hearing continues through a long, tortuous cross-examination.