Article 706-95-3 of the French Code of Criminal Procedure
The operations mentioned in articles 706-95-1 and 706-95-2 are carried out under the authority and control of the magistrate who authorised them and may not, on pain of nullity, have any purpose other than the investigation and recording of the offences referred to in the magistrate’s decision. The magistrate or the judicial police officer appointed by the magistrate may request any qualified agent of a service or body placed under…