Court of Justice 29 September 1999, C-165/98 (Criminal proceedings against André Mazzoleni and Inter Surveillance Assistance SARL, as the party civilly liable, third parties: Eric Guillaume and Others.)

Opinion of the Advocate-General Opinion of the Advocate-General A Introduction 1. The present reference for a preliminary ruling submitted by the Tribunal correctionnel, Arlon, concerns in order to clarify whether a French undertaking is required to pay the Belgian minimum wage for workers sent to Belgium the interpretation of the Treaty provisions on the freedom to provide services (Article 59