The woman who took the Government to court over Brexit has threatened to return if Theresa May doesn't come good on her promises.

Businesswoman Gina Miller told Sky News that if the Government did not stick to its promise to give Parliament a say in the Brexit negotiations and final deal, then she would return to the courts.

Speaking after the Brexit Bill cleared its final hurdle in the House of Lords, Ms Miller said she was "bitterly disappointed" MPs hadn't fought harder to amend the bill to force the PM to give them a "meaningful vote" on the final EU deal.

Ms Miller took her case against the Government all the way to the Supreme Court and won the ruling that means Mrs May had to win the support of Parliament before triggering Article 50, starting official Brexit proceedings.

Brexit bill passes final Lords hurdle

On Monday night, Parliament passed the bill unamended, which means Mrs May is now free to trigger Brexit whenever she chooses.


Ms Miller said if Parliament was not fully involved in the Brexit process then she would take the Government "back to court to find out whether they can do what they are intending to do".

She added: "My point has always been that Parliament needs to be sovereign.

"It needs to be at the centre of everything and if Parliament won't stand up for themselves, and I have to say everything I have invested in this, I have taken the horses to water, they didn't necessarily drink.

"But if they do that over and over again and for some reason are failing to scrutinise the Government on the Brexit package and the Brexit process, then I will seek the certainty of court."

MPs reject amendments passed by Lords

There had been speculation Mrs May would trigger Article 50 today but a Downing Street spokesman said on Monday that it would not be until the end of the month.

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Former UKIP leader Nigel Farage accused the Prime Minister of putting off the formal Brexit notification because of Nicola Sturgeon's demands for a second independence referendum in an announcement on Monday.

Nicola Sturgeon's full speech on second independence bid

The First Minister said a second vote on Scottish independence should be held by spring 2019, something the Prime Minister is understood to be planning to resist.

Mr Farage said he was disappointed triggering Article 50 had been put off until the end of the month saying it had been nine months since the Brexit vote and there had been "full gestation and still no delivery".

He said: "Of course I'm disappointed. I'm pleased that we are through all these hurdles, but I'm just a bit surprised that Nicola Sturgeon's announcement should have put the Prime Minister off."

He added: "Now that we are delaying the triggering of Article 50 what it means is that we will miss the summit of European leaders on 6 April at which Brexit could practically have been discussed.

"So therefore we have kicked it into the long grass until May."