FYI
"free trade" clearly aims to disrupt domestic food supply systems.
That and free trade is largely an animal of the WTO in the forms it takes. WTO will not allow member nations to dissallow imports based on possibilities of contamination. Precaution is not allowed to be an impediment to trade. So, say if you have a lot of bad food and want to sell it but there's no proof it's bad.. you sell it and the buyer is stuck. In all likelyhood, the minister's resignation was well founded based on current policy and trade practice via the WTO.