law: Code of Criminal Procedure Act, 1973
  
  287.Parties may examine witnesses.-
  (1) The parties to any proceeding under this
  
  Code in which a commission is issued may respectively forward any
  
  interrogatories in writing which the Court or Magistrate directing the
  
  commission may think relevant to the issue, and it shall be lawful for the
  
  Magistrate, Court or officer to whom the commission is directed, or to whom the
  
  duty of executing it is delegated, to examine the witness upon such
  
  interrogatories.
  (2) Any such party may appear before such Magistrate, Court or officer by
  
  pleader, or if not in custody, in person, and may examine, cross-examine and
  
  re-examine (as the case may be) the said witness.