Section 19

In any proceedings under this Act, any evidence that a package containing any tobacco product, smoking substance or substitute tobacco product and bearing the name, address or registered mark of an importer, manufacturer or distributor, or of the owner of the rights of the manufacturer, packer, or of an agent of any of them, shall be prima facie evidence that the tobacco product, smoking substance or substitute tobacco product is imported, manufactured or packed, as the case may be, by each of the persons whose name, address or the registered mark is borne on the packaging.