Every time Johnson Government waffles on about NI's integral place in UK Internal Market and guarantee of unfettered trade with Great Britain, this Commission summary of what businesses need to prepare for under Tories' "Great Brexit Deal" acts as a very effective lie detector.

Boris Johnson's #Brexit deal would require checks on goods travelling from Britain to Northern Ireland, with much more limited checks in the other direction, says Ireland's Deputy PM @simoncoveney.

The circle that is still impossible to square. Either there is a border in the Irish Sea, or the UK remains in the Customs Union. Fin.