Under French law the following measures fall into the scope of interceptions of telecommunications and other forms of electronic communications :
- interception of correspondence emitted by electronic communications : tapping of telephone conversations, SMS, messages left on an answering machine, real-time monitoring of an e-mail, instant messages exchanged between several people by means of a link secured by an encryption device, recording and transcription by the judicial police officer of telephone conversations by affixing a device connected to the handset of the device lived the agreement of one of the correspondents ;
-"IMSI catcher": it is a proximity device that makes it possible to obtain data that is difficult to access through the traditional use of simple telephone requisitions ;
- remote data capture.
The interception may be authorised by the liberty and custody judge upon request of the public prosecutor during the enquiry and by the investigating judge during the judicial information.
This measure can only be ordered if the needs of the enquiry require so.
1° Interception of correspondence :
• During the enquiry (under the responsibility of the public prosecutor) : the interception of telecommunication is restricted to offences of a peculiar gravity and complexity. Under art. 706-95 of the Criminal code of procedure the use of this measure is limited to enquiries relating to infractions mentioned at articles 706-73 and 706-73-1.
• During the judicial information (under the responsibility of the investigating judge) : this measure can only be ordered for crimes or offences punishable by 3 years imprisonment (art. 100).
2° "IMSI catcher" :
The use of IMSI catcher is limited to offences listed at articles 706-73, 706-73-1, 706-72, 706-1-1, 706-1-2 and 706-2-2 of the French code of criminal procedure.