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.