What are the implications under both, the General Agreement on Tariffs and Trade ( GATT ) and European Union Law on free movement of goods, for country A introducing the following measures:
(a) a prohibition of the sale or importation of any seafood products, which was harvested in such a way as damaging the population of sea turtles;
(b) a prohibition of the sale or importation of any meat product where animals were reared with the use of antibiotics, on the grounds of the unknown and potentially harmful impact of those antibiotics on human health.
Discuss, supporting your arguments with references to decisions of the WTO Dispute Settlement Body and the Court of Justice of the European Union.