law: Prevention of Black Marketing and Maintenance of Supplies of Essential Commodities Act, 1980
  5. Power to regulate place and conditions of detention
  Every person in respect of whom a detention order has been made
  
  shall be liable-
  (a) to be detained in such place and under such conditions,
  
  including conditions as to maintenance, discipline and punishment for breaches
  
  of discipline, as the appropriate government may, by general or special order,
  
  specify; and
  (b) to be removed from one place of detention to another place
  
  of detention, whether within the same State or in another State, by order of
  
  the appropriate government:
  PROVIDED that no order shall be made by a State
  
  Government under clause (b) for the removal of a person from one State to
  
  another State except with the consent of the government of that other State.