The court has a big constitutional decision to make in the appeal over who can trigger Article 50. But it may not be properly equipped to make it for the whole of the UK.
Nearly six months on from the UK's shock vote, there looks very little room for manoeuvre in negotiations.
We know there has to be an act of parliament but there's all to play for when it comes to what's actually in it.
How the Article 50 judgment kicked a hornets' nest.
The legal challenge over parliament's role in trigging the Article 50 process is misplaced.
The new battle lines on how to leave the EU have been drawn.
Two Germans, a Frenchman and a Belgian: who to watch as negotiations with the UK begin.
How to shift those stubborn opinion polls?
Theresa May is wise to play the long game when it comes to negotiating the UK's exit from the EU.
If Brexiters thought that making new international tariff deals and joining the WTO would be a cakewalk, they're in for a shock.
There is debate among lawyers on whether the process for a Brexit, once begun, can be stopped.
How does the UK go about disentangling itself from EU laws?
The key issue here is how to interpret Article 50 of the EU Treaty, which sets out the procedure for a member state to withdraw from the EU.
Brexit begins. Here's a primer on the laws at play in the UK's withdrawal process from the EU.
Article 50 looks deceptively simple but the reality will be anything but that. Here's what's laid out in the law if the UK votes for a Brexit.