Demoor and Others TITJUR Judgment of the Court (Sixth Chamber) of 16 December 1992. # Gilbert Demoor en Zonen NV and others v Belgian State. # References for a preliminary ruling: Rechtbank van eerste aanleg Brussel - Belgium. # Parafiscal charges - Compulsory contributions to a Fund for Animal Health and Livestock Production. # Joined cases C-144/91 and C-145/91.