Military courts have no power for civilians' trial, argues Imran's lawyer - SC judge questions why military courts weren't abolished in 21st Amendment - Civilians' trial in military courts not against int'l laws: top court judge - Military courts questioned over lack of transparency - SC questions scope of military courts under Army Act - SC judge seeks clarity on military courts' jurisdiction - Military courts recognised by the law, defence lawyer completes arguments - SC returns military court docs over 'prejudice' fears - Supreme Court hears appeal against civilian trials in military courts - SC asks for data on civilians tried by military courts