Court of Justice 26 May 2011, C-89/10 and C-96/10 (Q-Beef NV (C-89/10) v Belgische Staat and Frans Bosschaert (C-96/10) v Belgische Staat, Vleesgroothandel Georges Goossens en Zonen NV and Slachthuizen Goossens NV.)

Opinion of the Advocate-General Opinion of the Advocate-General I – Introduction 1. The present two references for a preliminary ruling (2) from the Rechtbank van eerste aanleg te Brussel (Court of First Instance, Brussels) (Belgium) concern the interpretation of the principles of European Union law on the recovery of amounts paid but not due. 2.