Demand TITJUR Opinion of Mr Advocate General Ruiz-Jarabo Colomer delivered on 7 July 1998. # Stefan Demand v Hauptzollamt Trier. # Reference for a preliminary ruling: Bundesfinanzhof - Germany. # Milk - Additional levy scheme - Additional reference quantity - Temporary withdrawal - Conversion into a definitive reduction - Loss of compensation - General principles of law and fundamental rights. # Case C-186/96.