law: The Prevention of Terrorism Act, 2002
  43. Interception of
  
  communication in emergency.-
  1.  Notwithstanding
  
  anything contained in any other provision of this Chapter, an officer not below
  
  the rank of Additional Director General of Police or a police officer of
  
  equivalent rank who reasonably de ermines that-
  a.   an emergency
  
  situation exists that involves-
   
  
   i.  
  
    immediate
  
  danger of death or serious physical injury to any person; or
   
  
  
  
   ii.  
  
    conspiratorial
  
  activities threatening the security or interest of the State; or (iii)
  
  conspiratorial activities, characteristic of a terrorist act, that requires a
  
  wire, electronic or oral communication to be intercepted before an order from
  
  the Competent Authority authorising such interception can, with due diligence,
  
  be obtained; and
  a.  
  
  
  b.   there are grounds on
  
  which an order should be issued under this section to authorise such interception,
  
  may authorise, in writing, the investigating officer to intercept such wire,
  
  electronic or oral communication, if an application for an order approving the
  
  interception is made in accordance with the provisions of sub-sections (1) and
  
  (2) of section 38 w thin forty-eight hours after the interception has occurred,
  
  or begins to occur.
  1.  
  2.  In
  
  the absence of an order approving the interception made under sub-section (1),
  
  such interception shall immediately terminate when the communication sought is
  
  obtained or when the application for the order is rejected, whichever is
  
  earlier; and in he event of an application for permitting interception being
  
  rejected under sub-section (1) of section 39 or an application under
  
  sub-section (1) of this section for approval being rejected, or in any other
  
  case where the interception is terminated without an order having been issued,
  
  the contents of any wire, electronic or oral communication intercepted shall be
  
  treated as having been obtained in violation of this section.