law: Code of Criminal Procedure Act, 1973
  291.Deposition of medical witness.-
  (1) The deposition of a civil surgeon or other
  
  medical witness, taken and attested by a Magistrate in the presence of the
  
  accused, or taken on commission under this Chapter, may be given in evidence in
  
  any inquiry, trial or other proceeding under this Code, although the deponent
  
  is not called as a witness.
  (2) The Court may, if it thinks fit, and shall, on the application of the
  
  prosecution or the accused, summon and examine any such deponent as to the
  
  subject-matter of his deposition.