Complex sentence: This meant that a Belgian law requiring Scotch whisky to have a certificate of origin was unlikely to be lawful, as it discriminated against parallel importers like Mr Dassonville, who could not get certificates from authorities in France, where they bought the Scotch.
Split into simpler sentences: This meant that a Belgian law requiring Scotch whisky imports to have a certificate of origin was unlikely to be lawful. It discriminated against parallel importers like Mr Dassonville, who could not get certificates from authorities in France, where they bought the Scotch.