Article 706-80-1 of the French Code of Criminal Procedure
Where there are one or more plausible grounds for suspecting persons of having committed one of the offences falling within the scope of Articles 706-73,706-73-1 or 706-74, in the context of a surveillance operation, and when required by the needs of the investigation or enquiry, officers of the judicial police and, under their authority, the officers of the judicial police in charge of investigations may, with the authorisation of the…