law: Code of Criminal Procedure Act, 1973
  
  284.When attendance of witness may be dispensed with and commission issued.-
  
  
  (1) Whenever, in the course of any inquiry,
  
  trial or other proceeding under this Code, it appears to a Court or Magistrate
  
  that the examination of a witness is necessary for the ends of justice, and
  
  that the attendance of such witness cannot be procured without an amount of
  
  delay, expense or inconvenience which, under the circumstances of the case,
  
  would be unreasonable, the Court or Magistrate may dispense with such
  
  attendance and may issue a commission for the examination of the witness in
  
  accordance with the provisions of this Chapter:
  
  Provided that where the examination of the President or the
  
  Vice-President of India or the Governor of a State or the Administrator of a
  
  Union territory as a witness is necessary for the ends of justice, a commission
  
  shall be issued for the examination of such a witness.
  (2) The Court may, when issuing a commission for the examination of a witness
  
  for the prosecution, direct that such amount as the Court considers reasonable
  
  to meet the expenses of the accused, including the pleader's fees, be paid by
  
  the prosecution.