Case C-474/16: Order of the Court (Sixth Chamber) of 24 October 2017 — (request for a preliminary ruling from the Cour d’appel de Colmar — France) — Criminal proceedings against Belu Dienstleistung GmbH & Co KG and Stefan Nikless (Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court of Justice — Identical questions referred for a preliminary ruling — Coordination of social security systems — Regulation (EC) No 883/2004 — Applicable legislation — A1 certificate — Probative value)