law: Scheduled Castes and The Scheduled Tribes (Prevention of Atrocities) Act, 1989
  9. Conferment of powers
  (1) Notwithstanding anything contained in the Code or in any
  
  other provision of this Act, the State Government may, if it considers it
  
  necessary or expedient so to do,-
  (a) for the prevention of and for coping with
  
  any offence under this Act, or
  (b) for any case or class or group of cases
  
  under this Act, in any district or part thereof, confer, by notification in the
  
  Official Gazette, on any officer of the State Government, the powers
  
  exercisable by a police officer under the Code in such district or part thereof
  
  or, as the case may be, for such case or class or group of cases, and in
  
  particular the powers of arrest, investigation and prosecution of persons
  
  before any Special Court.
  (2) All officers of police and all other officers of Government
  
  shall assist the officer referred to in sub-section (1) in the execution of the
  
  provisions of this Act or any rule, scheme or order made thereunder.
  (3) The provisions of the Code shall, so far as may be, apply to
  
  the exercise of the powers by an officer under sub-section (1).