Davis made the claim of an 'invisible border' on the BBC on Sunday morning.
The UK's Brexit Minister David Davis says that his government wishes to maintain an 'invisible border' between the six counties and the rest of Ireland.
Speaking on The Andrew Marr Show on the BBC, he said that his government could monitor trade by 'tagging containers' that travel between the north and the south.
“It’s technically difficult but doable,” he said.
“We want to have effectively an invisible border between the north and south.
“Now there are technical ways of doing that, number plate recognition on vehicles, tagging of containers, trusted trailer schemes — quite a lot of very technical stuff.”
Davis also told Marr that he was less than certain of securing a deal with the European Union over Britain's exit from the EU.
When he was asked if he was confident that a deal would be agreed, he was non-committal on the subject.
"I'm pretty sure, I am not 100% sure, you can never be, it's a negotiation," he said.
"I'm sure there will be a deal, whether it's the deal I want, which is a free trade agreement, the customs agreement, and so on, I'm pretty sure, but I'm not certain."
He said he was planning for all eventualities, even those that leave Britain without a deal in their favour.
"We cannot have a circumstance where the other side says that they are going to punish you. So, if that happens then there is a walkaway, and we have to plan for that.
"Half my job is the invisible job of actually planning for all outcomes, the good, the bad, the whole range."
He insisted that 'no deal' would be, "better than a punishment deal.
"'I'm being very clear about this. In my job I don't think out loud, I don't make guesses. I try to make decisions, you make those based on the data."
