law: Narcotic Drugs and Psychotropic Substances Act, 1985
  53. Power to invest officers of certain
  
  departments with powers of an officer-in-charge of a police station.
  (1) The Central Government, after consultation with the State
  
  Government, may, by notification published in the Official Gazette, invest any
  
  officer of the department of central excise, narcotics, customs, revenue
  
  intelligence or Border Security Force or any class of such officers with the
  
  powers of an officer-in-charge of a police station for the investigation of the
  
  offences under this Act.
  (2) The State Government may, by notification published in the
  
  Official Gazette, invest any officer of the department of drugs control,
  
  revenue or excise or any class of such officers with the powers of an
  
  officer-in-charge of a police station for the investigation of offences under
  
  this Act.