This blogpost was written on Friday, July 13th, 2018
If it worked once it will work again. That seems to be Theresa May’s approach to the Brexit negotiations, judging by the White Paper The Future Relationship Between The UK And The EU, published on Thursday. Back in 2012 when she was Home Secretary, using protocol 36 of the Lisbon Treaty, May opted-out en bloc from all the police and criminal justice measures adopted under the Maastricht Treaty before the EU court of justice in Luxembourg took over jurisdiction of them under Lisbon.
She then proceeded to opt back in to all of the measures she liked but was able to claim, to assuage die-hard anti-European Court Tory backbenchers, that she had opted-out.