The issues that will make or break Boris Johnson’s Supreme Court case

Politics Explained: There are five key questions that will determine the historic case – and shape the future of Brexit and government

In a ruling that will have potentially seismic consequences for Boris Johnson and Brexit, the Supreme Court will decide this week whether the prime minister acted unlawfully when he suspended parliament for five weeks.

The ruling is expected on Monday or Tuesday following a three-day hearing last week, and will have major repercussions whatever decision the judges reach.

But what are the issues that will decide the historic case? The case is complex and goes to the heart of the British legal system, but there are five key questions that the judges will need to answer.