The Attorney General - Parliament Live - Hansard
12 Mar 2019, 1:05 p.m.

No unilateral declaration is worth the paper it is written on if it is objected to. My understanding is that it is not objected to and that it will be deposited alongside the withdrawal agreement and, therefore, will carry legal weight under article 31 of the Vienna convention.

The Attorney General - Parliament Live - Hansard

I am extremely grateful to the right hon. Gentleman for his question, which I will deal with point by point. First, my opinion has changed in connection to this country’s ability to prove bad faith if it occurred. There is now a new contextual framework for judging whether the other party is using best endeavours or good faith.

Time has been made of the essence in specific connection to negotiating alternative arrangements. A specific work track and a specific timetable are set out, and it would be unconscionable, as I say in my opinion—I forget the paragraph, but the right hon. Gentleman will have it—if having said to this country that it will set up a specific, discrete work track on alternative arrangements, which are defined in this new document as meaning facilitative techniques, technologies and customs procedures, and if having set up a timeline for negotiating those alternative arrangements by saying “12 months, or we must intensify our efforts,” it never agreed to use a single one, and if it refused every proposal reasonably adjusted to its core interests. That would be extraordinary.

I say in my written opinion, and I stand by it, that it would be a potential breach of best endeavours and good faith. Best endeavours are now defined in this joint instrument as requiring the EU to consider adverse interests and matters that are adverse to its interests. Even if these facilitative technological and customs measures were adverse to the EU’s interests, the duty still requires it to consider them. Therefore if there were a pattern of refusal, a systematic refusal, to consider these alternative arrangements, we would have a case before the arbitration panel, and it would be a potentially serious breach of good faith.

I say to the right hon. Gentleman with all candour that I believe that, and he knows I would not say it if I did not mean it. It is there in my written opinion, and I urge him to consider it.