1° Obtaining information or evidence which is already in the possession of the French authorities and which could have been obtained, pursuant to national law, in the context of criminal proceedings or for the purposes of the European Investigation Order;
2° Obtaining information contained in automated processing of personal data implemented by the national police and gendarmerie services or the judicial authorities directly accessible in the context of criminal proceedings ;
3° Hearing a witness, an expert, a victim, a suspect, a person being prosecuted or a third party;
4° Identifying subscribers holding a specific telephone number or persons holding a specific internet protocol address;
5° Any other non-intrusive investigative measure that does not infringe individual rights or freedoms.