Court of Justice 10 March 2009, C-558/07 (The Queen, on the application of S.P.C.M. SA, C.H. Erbslöh KG, Lake Chemicals and Minerals Ltd and Hercules Inc. v Secretary of State for the Environment, Food and Rural Affairs.)

Opinion of the Advocate-General Opinion of the Advocate-General I – Introduction 1. The High Court of Justice of England and Wales asks the Court what is to be understood by the term ‘monomer substance’. 2. At first sight the reference for a preliminary ruling appears peculiar. One might have expected the question to be addressed to a chemist.