What is the standard that the UK Supreme Court's appeal panel apply in granting the permission to appeal?

The standard that the UK Supreme Court's appeal panel applies in granting permission to appeal is whether the case raises an arguable point of law that is of general public importance, or if there is some other compelling reason why the case should be heard by the Supreme Court. In other words, the panel will consider whether the case has the potential to make a significant contribution to the development of the law, or whether there is some other compelling reason why the case should be heard by the highest court in the UK. The panel will also consider whether the case has a realistic prospect of success, although this is not the only factor that is taken into account when deciding whether to grant permission to appeal. In general, the panel will take a fairly liberal approach to granting permission to appeal, as it recognizes the importance of ensuring that issues of public importance are thoroughly explored and that the law is developed in a robust and nuanced way.