The Government’s legal advice on this issue is clear, and was reflected on a number of occasions in several different communications between Ministers and representatives of the trade union movement—i.e. that under international law, a coastal state may not legislate in respect of foreign-flagged vessels which enjoy the right of innocent passage in the territorial sea, as provided in the UN convention on the law of the sea. This is a right enjoyed globally by UK-flagged vessels. We are equally clear that this right also applies to foreign-flagged vessels travelling between two UK ports, and that to apply the national minimum wage in such circumstances would not be consistent with customary international law of the sea.