Emergency laws to strengthen the UK's borders and security would follow swiftly after the country votes to leave the European Union, Justice Secretary Michael Gove has said.
The Leave figurehead said the UK would be able to act "relatively quickly" to deal with issues including the "rogue" European Court of Justice.
Mr Gove's prominent role in the Vote Leave campaign has led to speculation he could emerge as a Brexit-backing contender for the Tory leadership, but he appeared to rule himself out insisting:"I don't want to do it."
In an interview with the Daily Telegraph, Mr Gove set out the immediate steps the UK would be able to take in the days following a Leave victory in the June 23 referendum.
"We've stressed throughout that the day after we vote to leave, nothing fundamental changes and we still have the same trading arrangements and we start a process of informal talks and negotiations with our European partners," Mr Gove said.
"But there are some things that we can change relatively quickly. And one of the things we can do is that we can deal with the European Court of Justice, which has become a rogue court."
He claimed that the ECJ "intervened to prevent Abu Hamza's daughter- in-law being sent out of this country" and that it is considering a judgment on Britain's surveillance regime in an attempt to assert "legal control over what our intelligence agencies can and cannot do".
But under the new laws after Brexit "life in this country would change because Britain would be safer".
Mr Gove dismissed the prospect of replacing David Cameron when the Prime Minister stands down, saying: "I don't want to do it and there are people who are far better equipped than me to do it."