(1) The trial judge advocate may, at any
stage of the trial, summon any person as a witness or examine any person in attendance, though not
summoned as a witness, or recall and re-examine any person already examined; and the trial judge
advocate shall summon and examine or recall and re-examine any such person if his evidence appears to
the court or to the trial judge advocate as essential to the just decision of the case.
(2) Summons to the witnesses shall be issued as provided under this Act.
(2) Summons to the witnesses shall be issued as provided under this Act.