Without prejudice to the provisions of articles 60, 77-1 and 156, where it appears that data seized or obtained in the course of the investigation or enquiry has been subject to transformation operations preventing access to or understanding of the unencrypted information contained therein, or that this data is protected by an authentication mechanism, the public prosecutor, the investigating court, the judicial police officer, with the authorisation of the public prosecutor or investigating judge, or the trial court hearing the case may designate any qualified natural or legal person, with a view to carrying out the technical operations making it possible to obtain access to this information, its unencrypted version and, where encryption has been used, the secret decryption convention, if this appears necessary.
If the person thus designated is a legal entity, its legal representative shall submit for approval to the public prosecutor, the judicial police officer or the court hearing the case the name of the natural person or persons who, within the entity and on its behalf, will carry out the technical operations mentioned in the first paragraph. Unless they are included on a list provided for in Article 157, the persons thus designated shall take, in writing, the oath provided for in the third paragraph of Article 60 and in l’article 160.
If the penalty incurred is equal to or greater than two years’ imprisonment and the needs of the investigation or enquiry so require, the public prosecutor, the investigating court, the criminal investigation police officer, with the authorisation of the public prosecutor or investigating judge, or the court hearing the case may order the use of State resources subject to national defence secrecy in the manner provided for in this chapter.
.