Article R40-39 of the French Code of Criminal Procedure
The authorisations provided for in Article 230-25 are issued under the following conditions: 1° For officers of the national police services carrying out judicial police duties, either by the heads of the territorial services of the national police, or by the heads of the active services at the police prefecture or, where applicable, the police prefect, or by the heads of the central services of the national police or, where…