Dominic Grieve said the EU is like a 'gordion knot'
Dominic Grieve MP said that the tens of thousands of acts, court verdicts and international standards means that British citizens would be bound the EU laws like a “Gordion Knot”.
The former Attorney General said: “The best estimate is that there are now at least 40,000 legal acts, 15,000 court verdicts and 62,000 international standards binding on us by virtue of EU membership.
"It affects private rights such as intellectual property and data protection… Then there are all those other areas… that confer rights on us as EU citizens, in areas such as freedom of movement and of capital and rights of establishment, voting rights for the EU Parliament, anti-discrimination laws, competition law and human rights.
"It has to be for Parliament to consider such issues and question the Government on its strategy as to how these rights and obligations will be preserved, altered or unravelled."
The Remainer added that the June 23 referendum had triggered a task “fraught with legal complexity".
Mr Grieve added: “The EU is primarily a treaty about creating a single market.
"But that does not mean that Brexit can be neatly compartmentalised away from our interests in other areas in which the EU has an impact.
"All of this will have to be negotiated as well. It must also mean, at the end of the day, that decisions of the European Court of Justice and EU law… will continue to impact on us even if the direct effect of EU law is removed."
MPs are set to vote later today whether to give Theresa May power to start Brexit negotiations.
The Government is expected to sweep to victory as the majority of Tory and Labour MPs back the motion.
The vote is expected to be held at 7pm tonight.