ধারা ৫৪০Power to summon material witness or examine person present

540. Any Court may, at any stage of any inquiry, trial or other proceeding under this Code, 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 Court shall summon and examine or recall and re-examine any such person if his evidence appears to it essential to the just decision of the case.