law: Narcotic Drugs and Psychotropic Substances Act, 1985
  64. Power to tender immunity from
  
  prosecution.
  (1) The Central Government or the State Government may, if it is
  
  of opinion  (the reasons for such opinion being recorded in writing) that
  
  with a view to obtaining the evidence of any person appearing to have been
  
  directly or indirectly concerned in or privy to the contravention of any of the
  
  provisions of this Act or of any rule or order made thereunder it is necessary
  
  or expedient so to do, tender to such person immunity from prosecution for any
  
  offence under this Act or under the Indian Penal Code or under any other
  
  Central Act or State Act, as the case may be, for the time being in force, on
  
  condition of his making a full and true disclosure of the whole circumstances
  
  relating to such contravention.
  (2) A tender of immunity made to, and accepted by, the person
  
  concerned, shall, to the extent to which the immunity extends, render him
  
  immune from prosecution for any offence in respect of which the tender was
  
  made.
  (3) If it appears to the Central Government or, as the case may
  
  be, the State Government, that any person to whom immunity has been tendered
  
  under this section has not complied with the conditions on which the tender was
  
  made or is willfully concealing anything or is giving false evidence, the Central
  
  Government or, as the case may be, the State Government, may record a finding
  
  to that effect and thereupon the immunity shall be deemed to have been
  
  withdrawn and such person may be tried for the offence in respect of which the
  
  tender of immunity was made or for any other offence of which he appears to
  
  have been guilty in connection with the same matter.