Article 656-1 of the French Code of Criminal Procedure
When the testimony of an agent of a service mentioned in article L. 811-2of the Internal Security Code or of a service designated by the decree in Council of State provided for in article L. 811-4 of the same code or a person mentioned in article 413-14 of the Criminal Code is requested during legal proceedings about facts of which he or she may have become aware during a mission…