law: Code of Criminal Procedure Act, 1973
  
  266.Definitions.-
   In this Chapter, -
  (a) "detained">includes detained under any law providing for
  
  preventive detention;
  (b) "prison">includes, -
  (i) any place which has been declared by the State Government, by general or
  
  special order, to be a subsidiary jail;
  (ii) any reformatory, Borstal institution or other institution of a like
  
  nature.