law: Custom Act, 1962 
  106.
  
  Power to Stop and Search Conveyances. – 
  (1)
  
  Where the proper officer has reason to believe that any aircraft, vehicle or
  
  animal in India or any vessel in India or within the Indian customs waters has
  
  been, is being, or is about to be, used in the smuggling of any goods or in the
  
  carriage of any goods which have been smuggled, he may at any time stop any
  
  such vehicle, animal or vessel or, in the case of an aircraft, compel it to
  
  land, and –
  (a) rummage and search any part of the aircraft, vehicle or vessel;
  (b) examine and search any goods in the aircraft, vehicle or vessel or
  
  on the animal;
  (c) break open the lock of any door or package for exercising the powers
  
  conferred by clauses (a) and
  (b), if the keys are withheld.
  (2)
  
  Where for the purposes of sub-section (1) –
  (a) it becomes necessary to stop any vessel or compel any aircraft to
  
  land, it shall be lawful for any vessel or aircraft in the service of the
  
  Government while flying her proper flag and any authority authorised in this
  
  behalf by the Central Government to summon such vessel to stop or the aircraft
  
  to land, by means of an international signal, code or other recognized means,
  
  and thereupon, such vessel shall forthwith stop or such aircraft shall
  
  forthwith land; and if it fails to do so, chase may be given thereto by any
  
  vessel or aircraft as aforesaid and if after a gun is fired as a signal the
  
  vessel fails to stop or the aircraft fails to land, it may be fired upon;
  (b) it becomes necessary to stop any vehicle or animal, the proper
  
  officer may use all lawful means for stopping it, and where such means fail, the
  
  vehicle or animal may be fired upon.