of Session.
Why? The Scottish courts are sending a request for opinion to the ECJ for opinion.
This is normal we should think as lower courts often ask for an opinion from a higher court. So much is true, however this opinion is always sought where the lower court has the right to rule, but could be overruled by the higher court on appeal. By seeking an opinion, the chances of being overruled on appeal are much lower.
So why do I expect a rebuke? The Scottish Court has no right of ruling on A50. In fact the Scottish Court cannot even petition the ECJ to rule on A50. Only the Government, on trying to Repeal the activation, or the EU commission itself, on receiving the unilateral declaration to Repeal the activation by the UK government, can petition the court.
I expect the ECJ to say what they said to the last one of these. There is no case to answer because none of the competent authorities have raised a petition to the court.
Lest it be forgotten, there is only one person in the UK who can do this and that is the PM.