Key pledges in the SNP manifesto would need European permission, the head of the Scottish Leave campaign has claimed. Former Labour MP Tom Harris said SNP proposals such as minimum pricing on alcohol and tougher action against tax-evading firms would be "ignored" by Brussels. Harris said: "The First Minister announced that her government would introduce tough new rules against companies who are guilty of tax evasion, and don't pay the living wage, and such organisations would be deprived of public sector contracts. "But Ms Sturgeon has, once more, spoken without EU permission. The procurement directives enshrined in EU law, which Scotland is currently bound by, will almost certainly prevent any such thing from happening, irrespective of the mandate she receives for that policy on May 5." He added: "Perhaps in future Nicola should get her manifesto vetted by the European Union, as they ultimately will decide what she can and can't do as First Minister of Scotland." The SNP called Leave's remarks "total nonsense". An SNP spokesperson said: "This is total nonsense from Tom Harris and his UKIP friends in the Leave campaign - Scotland benefits enormously from our membership of the EU and the access to a Europe-wide market for our exporters, such as our food and drink industry. "The Vote Leave campaign can't say what would take the place of that single market and are unable to give any guarantees on what would happen to the jobs and investment the EU supports in Scotland. "It's no wonder that polls continue to show people in Scotland overwhelmingly supporting our place in Europe." Tom Harris was MP for Glasgow Cathcart and then Glasgow South from 2001 to 2015. He lost his seat to the SNP's Stewart McDonald in the 2015 general election. Harris was made director of the Scottish Vote Leave campaign in March.