TORY power grab plans have been described as a “Trojan horse” for Trump’s America that could lead to chlorinated chicken being foisted upon Scotland despite objections from Holyrood.

The UK Government yesterday insisted on its plans to legislate for a UK-wide internal market after Brexit would not lead to lower standards. It was, it said, about giving businesses the “regulatory clarity and certainty” they need.

“It will ensure that the cost of doing business in the UK will remain as low as possible,” Tory Business Minister Alok Sharma told MPs. “This is not about ideology, this is about pragmatism.”

The minister was speaking as the Government published a white paper setting out the internal market’s framework for consultation.

The most contentious part of the proposal is for a “mutual recognition” regime. The paper says this is to ensure “that the rules governing the production and sale of goods and services in one part of the UK are

recognised as being as good as the rules in any other part of the UK, and they should therefore present no barrier to the flow of goods and services between different regulatory systems”.

This is to prevent one of the four nations of the UK “blocking products or services from another part”.

Effectively, if passed, it will mean that the administrations in Edinburgh, Cardiff and Belfast can set their own standards, but will have to take products from other parts of the UK, even if they are of a lower standard.

For the SNP, the worry is that Downing Street, desperate for a post-Brexit trade deal with the US, could allow cheap American food imports, including chlorinated chicken, into the UK.

The SNP’s Westminster leader, Ian Blackford told MPs: “The only recognition here is that it is a plan for a race to the bottom on standards.

“It will mean a reduction in standards in one part of the UK driving down standards elsewhere, even if that is in direct contradiction of the devolved administrations and their rights and powers.

“We all know how desperate this Tory Government are to sell out food standards in return for a US trade deal.

“There we have it: no new powers and a plan to destroy Scotland’s world-class food and drink

standards – not a parliament in Edinburgh of equals, but one where we legislate only with the approval of Westminster.”

His colleague Kenny MacAskill later said that while a “mutual recognition regime” sounded benign, it would allow animals treated appallingly into the UK’s food chain.

“To paraphrase the old adage, should we beware this time not of Greeks but of the British bearing gifts, less than a Trojan horse but this time for Trump’s America?” he asked.

In his opening statement, Sharma rejected accusations that the new legislation would lead to lower standards.

“The UK economy has some of the highest standards in the world. We go beyond EU rules in many areas, including health and safety in the workplace, workers’ rights, food, health and animal welfare, consumer protections, household goods, net zero and the environment.

“We will maintain our commitment to high standards, as we negotiate trade agreements that will provide jobs and growth to the United Kingdom. Through our common frameworks approach, we will support regulatory consistency across our internal market, so if the devolved administrations seek to agree standards across the UK economy, I say simply this: come and work with us.”

Speaking at the Scottish Government’s daily briefing, the First Minister said if the plans had been in place before now they could have stopped the Scottish Parliament being able to legislate for minimum pricing for alcohol and introducing a ban on genetically modified crops.