Parliament must vote on whether the UK can start the process of leaving the EU, the High Court has ruled.
This means the government cannot trigger Article 50 of the Lisbon Treaty - beginning formal exit negotiations with the EU - on its own.
Theresa May says the referendum - and existing ministerial powers - mean MPs do not need to vote, but campaigners called this unconstitutional.
The government is appealing, with a further hearing expected next month.
- Rolling reaction to Article 50 court ruling
- Kuenssberg: Will this mean early election?
- The High Court's judgement in full
- Brexit: All you need to know
A statement is to be made to MPs on Monday but the prime minister's official spokesman said the government had "no intention of letting" the judgement "derail Article 50 or the timetable we have set out. We are determined to continue with our plan".
Plebiscites only count when plebes vote the way they're told.
(Score: 2) by choose another one on Friday November 04 2016, @04:40PM
The only reason for doing that would be if the government thought that legislation would not be necessary to invoke article 50... oh wait that is what they did believe. Many people seem to have forgotten that Cameron was going to invoke Article 50 on the morning after the vote, that was the expectation, including from other EU leaders and the european parliament. It was widely stated, and I believe that includes _before_ parliament voted on the referendum, yet no one objected then, no one said "hang on are you sure you can do that".
If he had done it before resigning, as he promised, instead of just cutting and running, would we still be arguing about whether he could do it while the rest of the EU sits waiting at the table while the clock runs down?