The DUP director has warned she will not support any Brexit deal that could come to new economic barriers between Northern Ireland and the rest of the UK.
Arlene Stimulate was speaking after a meeting with the EU’s chief Brexit negotiator Michel Barnier in Brussels.
The superintendence is expected to give details of its backstop plan in the coming days.
Mrs Raise said it would be studied carefully.
«What we need to see is the legal textbook,» she said.
«We cannot talk in a vacuum. We need to see what has been planned and we will check that against what we have called our red on the short list for.»
Mrs Foster said she hadn’t been shown a text of a «hybrid backstop» expect being worked up by UK officials.
Diplomatic sources have suggested to the BBC that it is unattractive the UK would present a document outlining an alternative to the backstop in the withdrawal ahead.
«Instead the negotiations are about where the two sides converge,» said the BBC’s Brussels presswoman Adam Fleming.
«Talks this week are intense and fluid but there is swayed to be a sense of optimism and movement.»
Ireland’s foreign minister says that exploits to reach a deal on the withdrawal agreement will probably have to last into November.
Simon Coveney says he expects the UK to bring advance new text on the border backstop, though he does not expect it to be published, preferably confined to negotiations.
Mr Coveney said he hoped a new text would be «pragmatic» but does not know if it would be enough for a significant step forward by next week’s EU pinnacle.
He said he would know more after meeting the EU’s chief Brexit intervener on Monday and Tuesday.
The backstop arrangement is effectively an insurance method to avoid a hard border in Northern Ireland.
It is what will cook if a deal is agreed but the border cannot be kept as frictionless as it is now.
The EU believes the backstop should vile Northern Ireland effectively staying in the single market for goods and the routines union until the UK comes up with a solution to the border issue.
Prime Delegate Theresa May wants a backstop that would see the whole of the UK staying in the customs synthesizing for a limited period of time after the transition period — something the EU has reported is unacceptable.
Mrs Foster has warned there will be «catastrophic» consequences for the Northern Irish conciseness if any trade barriers are introduced between Northern Ireland and Great Britain.
Study: BBC News NI’s Gareth Gordon in Brussels
The large number of journalists be put on ice to hear Arlene Foster’s take on her meeting with Michel Barnier tells you the whole shooting match about the DUP’s meteoric rise up the political pecking order.
Small regional partisans do not normally attract the attention of the international media.
However, the DUP is the party which Theresa May relies on to put an end to in power, and the party can — theoretically at least — vote down a backstop act.
There was general astonishment in the media centre when Mrs Foster divulged she hadn’t yet seen the UK’s so-called hybrid backstop plan.
If it does check provision for light-touch regulatory checks on goods between Northern Ireland and Smashing Britain, she left no doubt that would be unacceptable to the DUP.
Mrs Foster joined that she would wait to see the text before commenting in detail on the promulgation.
When she does, the DUP might have a tough decision to make, and so mightiness the Prime Minister.
Representatives of Northern Ireland’s two main unionist defenders — the DUP and the Ulster Unionists — met Mr Barnier earlier on Tuesday to discuss Brexit.
Ulster Unionist the man Robin Swann was guardedly optimistic about the possibility of «a good transaction for the UK which involves NI and the EU».
«The feeling we’re getting coming from the negotiators, the deputies and from part of the negotiating team that we met seem to be indicating we are prospering towards a deal,» he said following his party’s talks with Mr Barnier.
«We are seven to ten epoches from this deal having to be on the table.
«I don’t want to be overly bright or to spook the horses but I think serious negotiations are going on.»
Mr Barnier recently asked for «less drama» over the so-called Brexit backstop regarding the Irish on.
The EU negotiator held talks with four of NI’s other parties survive Friday.
Mrs Foster had earlier warned that the upholder would not support a Brexit deal that could lead to any new brakes on goods coming into NI from elsewhere in the UK.
Speaking ahead of Tuesday’s confluence, she said: «The United Kingdom single market must be protected with no new edges between Northern Ireland and Great Britain being created. From day one this has been the DUP’s merely red line.
«Over 70% of all goods leaving Belfast port are intended for Great Britain. To create a barrier to that trade would be catastrophic.»
Move behind their meeting with Mr Barnier last week, Sinn Féin and the SDLP communicated they rejected the possibility of Stormont having a say over what obliging of backstop may emerge.
Proposals being worked on by the British government are alleged to include some kind of role for MLAs, but the nationalist parties are appalling that this would give rise to a veto for the DUP.
On Saturday, EU officials intimated optimism that a Brexit deal could be struck by the end of the year.
But Irish taoiseach (prime man) Leo Varadkar said there was still «a fair bit of work to be done».
NI secretary Karen Bradley let someone knowed the Conservative Party conference the government would «never ever consideration a border down the Irish Sea».
Meanwhile, Irish finance minister Paschal Donohoe has said that the Irish ministry’s «central case» is that a Brexit deal will be done in the emerge b be publishing weeks between Britain and the European Union.
But the Republic of Ireland is on to plan for the possibility that no deal is agreed.
Speaking as he set out Ireland’s 2019 budget in parliament, he conjectured spending plans were «based on a central case that there require be agreement in the coming weeks».
«However, the possibility of a no-deal Brexit has controlled decisions,» he added.
The UK is due to leave the EU on 29 March 2019.