Article 706-89 of the French Code of Criminal Procedure
If the requirements of the flagrante investigation relating to one of the offences falling within the scope of Articles 706-73 and 706-73-1 so require, the liberty and custody judge of the judicial court may, at the request of the public prosecutor, authorise searches, domiciliary visits and seizures of exhibits to be carried out outside the hours provided for in Article 59.