Section 311 of Code of Criminal Procedure says:
“311. Power to summon material witness, or examine person present. – 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 to be essential to the just decision of the case.”[1]
Besides the above specific provision under the Cr. P.C. empowering the criminal and civil Courts as the case may be, to summon and examine witnesses, a Judge in order to discover or to obtain proof of relevant facts is empowered under Section 165 of the Indian Evidence Act to exercise all the privileges and powers subject to the proviso to that section which power he has under the Evidence Act. Section 540 of the old Code (Section 311 of the new Code) and Section 165 of the Evidence Act may be said to be complementary to each other and as observed by this Court in Jamatraj Kewalji Govani v. State of Maharashtra[2], these two sections between them confer jurisdiction on the Judge to act in aid of justice.