The UK Government faces a wait until next year to find out whether it has won its Brexit challenge at the UK's highest court.
At the completion of four days of detailed legal argument, 11 Supreme Court justices reserved their ruling until the new year.
The Supreme Court has continued to hear more arguments over the right to trigger Brexit as the landmark legal battle reaches its fourth and final day.
Scotland's most senior law officer Lord Advocate James Wolffe QC continued his submission that Scotland was entitled to a "voice" before Richard Gordon QC, for the Welsh Government, addressed the 11 justices.
The hearing at the UK's highest court follows a High Court ruling in November that the Prime Minister lacked legal power to use the royal prerogative to trigger Article 50 to begin Britain's EU withdrawal.
The Supreme Court proceedings will finish later though a ruling will not be given until the new year.
Gripping TV it may not have been but the televised four-day hearing was a box office event for fans of legal argument.
The UK's highest court has been told that a motion in Parliament does not have any bearing on the legal issue it is having to decide.
The Supreme Court is hearing an appeal to overturn a High Court ruling that said the prime minister could not trigger Article 50.