law: Prisoners Act, 1900
  6. Power for State Government to appoint Superintendents
  
  of presidency prisons
  The 4[State Government] may appoint officers who shall have
  
  authority to receive and detain prisons committed to there custody under this
  
  Part.
  Explanation.- Any officer so appointed, by whatever
  
  designation he may be styled, is hereinafter referred to as "the
  
  Superintendent".