law: The Prevention of Terrorism Act, 2002
  42. Authority
  
  competent to carry out interception.-
  1.  An
  
  interception under this Chapter may be conducted in whole or in part by a
  
  public servant, acting under the supervision of the investigating officer
  
  authorised to conduct the interception.
  2.  Whenever
  
  an order authorising an interception is issued pursuant to this section, the
  
  order may require reports to be made to the Competent Authority who issued the
  
  order showing that progress has been made towards achievement of the authorised
  
  objective and the need for continued interception and such report shall be made
  
  at such intervals as the Competent Authority may require.