Robert Chester is a military officer and lawyer. Chester is a Colonel in the United States Marine Corps. Chester has recently been appointed to serve as President of the Guantanamo military commission faced by Omar Khadr. On January 12, 2006 he admonished Khadr's prosecutor, Colonel Morris Davis, to show more respect to Khadr. He instructed him to start referring to Khadr as "Mr Khadr".