law: Emigration Act, 1983
  6.Emigration check
  
  posts.-
  (1) Where the Central Government considers
  
  that, with view to preventing or checking the contravention of the provisions of
  
  this Act, it is necessary so to do, it may, by notification, set up such number
  
  of emigration check posts at such places as may be specified.
  The Central Government may, by general or
  
  special order made in this behalf, appoint an officer of the Central Government
  
  or of a State Government to be an officer in charge of an emigration check-post
  
  set up under sub section (1).
  An officer in charge of an emigration
  
  check-post shall be subject to the general control and supervision of the Protector
  
  of Emigrants within the local limits of whose jurisdiction that emigration
  
  check-posts is situated