The government was also forced to deny that it intends to not publish migration statistics during the referendum purdah period because they would help the Leave campaign.
Ms Patel said that if there is a Remain vote Mr Osborne’s assurances would be worth nothing and “there will be more broken promises on visas and border controls than we have ever seen before.”
It means that 77 million Turks could be given the right to come to the UK along with millions more refugees currently based in the Islamic country.
Ms Patel said: “The deal with Turkey makes clear both the risk of voting to stay in the EU on June 23rd and the lack of influence we have in the EU today.
“It’s frankly outrageous that Brussels rolls out the red carpet for Turkey, and bows to their demands, when they failed to support the modest policy reforms requested in the UK’s renegotiation.
“The only way we can take back control of our borders, economy and country is to vote Leave.”