LATE this morning in the European Court of Justice in Luxembourg the so-called “Scottish Case” may be decided.

The court’s Advocate General will give his opinion to the 27 justices sitting in judgement on what is a crucial case for the future of Brexit.

The final judgement has not been made, but the Advocate General’s ruling is rarely overturned, When the final judgement is made, it most probably will be done on a vote among the judges. Their verdict will be delivered and if they back the six Scottish politicians and English lawyer who have taken it, political hell will break loose.

The National has covered the case from the outset and while much of the media ignored it or accused the petitioners, as they are known in Scots Law, of treachery and treason, we have reported each stage.

The “Scottish Six” are Andy Wightman MSP and Ross Greer MSP for the Greens, Catherine Stihler MEP and David Martin MEP for Labour, Joanna Cherry MP and National columnist Alyn Smith MEP, along with Jo Maugham QC from the Good Law Project.

The case, as it was originally taken to the Court of Session, turned on a simple question which as Alyn Smith wrote yesterday the case may have “an incredibly significant answer.”

The petitioners wanted the right to go to the European Court of Justice (ECJ) to get an opinion from the court which Brexiteers hate but which is still supreme in Europe for now.

As Smith explained: “Under the terms of the EU treaties, Mrs May acting on behalf of the UK triggered Article 50 unilaterally, by writing a letter. The EU states were obliged to accept it and had no say in when or how it was done.

“The question is simple – can the UK revoke Article 50 by a simple letter or do the other EU states have a say in it and might they impose conditions?”

The first judge in the Court of Session dismissed the case, but on appeal Lord Carloway, Scotland’s most senior judge, and two colleagues allowed the case to proceed. Lord Carloway wrote: “Only the Court of Justice of the European Union could answer definitively whether the UK’s notification to leave the EU could be unilaterally revoked.

“The answer will have the effect of clarifying the options open to MPs in the lead up to what is now an inevitable vote.”

That’s the vote which will take place next week. The UK Government tried to stop the case going to the ECJ but the UK Supreme Court backed the Scottish judges.

The ECJ has heard the evidence and we now await the outcome.

If the Scottish Six win, Parliament will have the right to cancel the Article 50 process. If the UK Government wins, they will have to explain how they are going to stop or alter Brexit should the House of Commons vote down Theresa May’s deal. High stakes indeed.