Three things you need to know about today's Brexit ruling.

Three things you need to know about today's Brexit ruling. 🇬🇧 ✂ 🇪🇺

http://bbc.in/2jt5d1W

‪Supreme Court ruling - key points‬

‪• The 1972 Act that took the UK into the then EEC creates a process by which EU law becomes a source of UK law‬

‪• So long as that act remains in force, it means that EU law is an "independent and overriding source" of the UK's legal system‬

‪• Unless Parliament decides otherwise, this remains the case‬

‪• Withdrawal from the EU makes a fundamental change to the UK's constitutional arrangements because it will cut off the source of EU law‬

‪• Such a fundamental change will be the inevitable effect of a notice being served‬

‪• The UK constitution requires such changes can only be made by Parliament

‪• The fact that withdrawal from the EU would remove some existing domestic rights of UK residents also renders it impermissible for the government to withdraw from the EU Treaties without prior parliamentary authority‬