importance of this ahead of manifesto is whether the entire manifesto is consistent with Remain/referendum position bbc.co.uk/news/uk-politi…
"While we are a member of the European Union, we are required to observe law which places restrictions on the introduction of measures that impair the movement of goods within the EU market."
Other EU law experts suggest might be able to do it within EU, but I note within EU now no import bans...
ie foie gras ban might be legal in EU..