One of the most important constitutional cases in British legal history will sit for its second day. The Supreme Court is hearing an appeal from the Government to overturn a High Court ruling that said the prime minister could not use the royal prerogative to trigger Article 50 and begin the formal Brexit process. But what were the main findings from the first day? Deok Joo Rhee is a barrister at 39 Essex Chambers, and she joined Share Radio to offer her views.