It has been a year since Prime Minister Theresa May wrote to European Council president Donald Tusk, on March 29th, 2017, notifying him of the UK's intention to leave the European Union in accordance with Article 50 of the Treaty on European Union. So, how go the Brexit negotiations, one year on? Richard Bestic takes a look.

Brexit was all about winning back the sovereignty of the British Parliament. Taking control of the country's borders from Brussels. And it was Article 50, which was to trigger that change.

DONALD TUSK, PRESIDENT EUROPEAN COUNCIL "So here it is. Six Pages."

As the labyrinthine Brexit talks got underway, however, UK Prime Minister Theresa May called a General Election – resulting in a catastrophic loss of her Parliamentary majority. She spent more than a billion dollars buying support from a political Party in Northern Ireland with roots in fundamentalist religion. And ironically, it is the land border between Northern Ireland and the Irish Republic that remains one of the biggest Brexit conundrums still. At the European Union Commission they insist on no change to a crossing that embodies trade and peace.

MICHEL BARNIER EU CHIEF BREXIT NEGOTIATOR "Daily life around the border should continue as today."

That of course would mean British membership of the EU Customs Union and no UK control over borders or EU immigration. All unacceptable to hard-line Brexit supporters. Looking on the bright side. Prime Minister Theresa May hailed the post Brexit return of the Blue passport as an expression of Britain's independence and sovereignty. Only to find the new Blue will be made by a Franco-Dutch firm in France. On the streets of the UK people there are worries.

"It's very bad. Everyone worry about the Brexit, because we lose job, economy is very bad actually."

"The pound dropped by an almost 20 percent, and it hasn't changed."

"It's divided the country, it's divided friends and family."

So complex has Brexit proved to be that negotiators need a two-year transition period welcomed by Theresa May after Brussels talks. But a cause of dismay among protesting Brexit hardliners at home. They fear for the impact of the deal on Britain's fishing industry. And now with accusations that the Vote Leave campaign cheated, there are those questioning ultimately whether Brexit is deliverable.

RICHARD BESTIC LONDON "So a year on from Article 50 and around a year to go before the UK actually leaves the European Union, perhaps the most extraordinary thing is that – close as it was – there's little in the opinion polls to suggest the people would vote any differently if they had to do the whole all over again. RB, CGTN."