Brexit would pave the way for an immigration revolution to slash numbers arriving from the EU, leading Out campaigners pledge today.

Boris Johnson, Michael Gove and Priti Patel say they will insist on a tough Australian-style points system to finally meet the Tory pledge to cut net immigration to below 100,000.

In a statement they attack David Cameron’s dismal record on the issue, warning that Britain’s EU membership means we ‘don’t have control’ over who comes here.

Michael Gove (left) and Boris Johnson (right) have attacked David Cameron's record on immigration and pledged to create a Australian-style points system if the UK votes for Brexit

Instead, they promise that if the country votes Leave on June 23, they will push for a points-based immigration scheme by 2020.

Migrants could settle here only if they have skills needed by the economy. It would mean a ban on jobless arrivals from the EU – something originally promised by the Prime Minister, but thwarted by Brussels.

‘If we implement these principles, for the first time in a generation it will be possible for politicians to keep their promises on immigration,’ the statement says. In other developments in the Brexit debate:

Former Treasury minister Andrea Leadsom warns in the Daily Mail that George Osborne’s national living wage is a ‘huge draw’ for migrants that is fuelling ‘uncontrolled immigration’ from within the EU;

Two polls suggested the Leave campaign has moved ahead of the Remain side;

It emerged a new fleet of border patrol vessels will not be fully in place until 2018, with ministers also facing criticism for axing a deal for spy planes to help spot illegal immigrants;

CCTV images from Dymchurch, Kent, suggested the coastal resort is now a gateway for people-smugglers;

Pro-Brexit Cabinet minister Chris Grayling warned there was a danger the Channel could take over from the Mediterranean as the focus of the migrant crisis;

Mr Gove and Mr Johnson said Brexit would allow the Government to scrap VAT on fuel, cutting £2billion from bills.

Employment minister Priti Patel (left) and senior Labour MP Gisela Stuart (right) also say the UK cannot cope with net immigration from the EU and have backed Mr Gove and Mr Johnson's campaign

The Out campaigners’ statement today says: ‘The automatic right of all EU citizens to come and live and work in the UK will end, as will EU control over vital aspects of our social security system.’

They add: ‘Those seeking entry for work or study should be admitted on the basis of their skills without discrimination on the ground of nationality … economic migrants will have to be suitable for the job in question. For relevant jobs, we will be able to ensure that all those who come have the ability to speak good English.

‘Such a system can be much less bureaucratic and much simpler than the existing system for non-EU citizens.’

If we implement these principles, for the first time in a generation it will be possible for politicians to keep their promises on immigration Boris Johnson, Michael Gove, Priti Patel and Gisela Stewart

The initiative is the clearest sign yet that Mr Johnson, Mr Gove and Miss Patel are drawing up an alternative programme for government in the event of a Leave vote – suggesting they believe Mr Cameron would have to accept their agenda if he continued as PM. A source close to the three senior Tories last night said the aim of the new system would be to cut net migration from 333,000 a year ‘to the tens of thousands’.

Immigration has dominated the referendum debate since last week, when official figures confirmed Mr Cameron has no chance of hitting his target to reduce numbers below 100,000 while in the EU.

The Office for National Statistics figures showed the number of EU migrants coming to Britain under freedom of movement rules hit 270,000 last year. They included a record 77,000 who came without a job offer, despite a pledge by the Prime Minister to outlaw the practice.

Net EU migration – taking into account the number of EU citizens who left the UK – stood at 184,000. Overall net migration, including arrivals from outside the EU, was 333,000 in the year to December – the second highest figure on record.

At present, Britain is powerless to stop EU migrants travelling here to work, except when they are deemed a threat.

AUSTRALIA'S SYSTEM THAT GETS RESULTS Australia's tough immigration points system is credited with bringing numbers under control while ensuring the country’s economy can access the skills it needs. The system, formalised in 1989, runs two separate programmes – one for economic migrants and another for refugees and asylum-seekers. Visas for skilled workers are points-tested according to the need for their skills. Extra points are awarded for factors such as experience, qualifications and age. For the year 2013/14, Australia capped the number of non-humanitarian immigrants at 190,000 – including the dependants of skilled workers. In that period Australia also welcomed approximately 20,000 people under its Humanitarian programme. Migrants entering the country on employer-sponsored visas are not points-tested.Australia also imposes health requirements for migrants, designed to minimise public health risks and the burden on the country’s health system, including the access to treatment for existing citizens. Those seeking a permanent visa must undergo a medical examination, including a chest X-ray and an HIV test. Only those with TB are automatically barred from receiving a visa, but officials assess other cases to judge their likely impact on Australia. Britain is 94,060 square miles and has a population of around 65million people. By contrast Australia, which has a population of 24million people, is 2.9million square miles. It is the fifth largest country in the world and is roughly 30 times the size of the UK. Advertisement

Pictured are migrants queuing for clothes in a southern part of the 'Jungle' migrant camp, where thousands have massed in recent months as they try to make their way into Britain

Under Brexit supporters’ proposals, all budding migrants would have to apply for a visa, and only those who meet strict skills criteria – including a good command of English – would be allowed to come here to work. Sources said that, as in Australia, the total would be limited by an annual cap.

Existing EU migrants who have settled here would be allowed to stay. Irish citizens would not be affected. The Out campaigners say Brexit would also enable a change in the law to allow criminals and extremists to be deported to the EU.

Mr Johnson, Mr Gove, employment minister Miss Patel and senior Labour MP Gisela Stuart say the UK cannot cope with net immigration from the EU on the current scale, which adds a population equivalent to Oxford’s each year.

‘This puts particular strain on public services,’ they say. ‘Class sizes will rise and waiting lists will lengthen if we don’t tackle free movement. As the euro crisis continues, more people from southern Europe will want to escape unemployment and austerity in their countries by coming to the UK. Their arrival will put further strain on schools and hospitals.’

WE'RE 'OBSESSED' WITH INSTANT INTEGRATION ADMITS EU'S TUSK The EU is obsessed with ‘total integration’ despite widespread public opposition, Donald Tusk admits The EU is obsessed with ‘total integration’ despite widespread public opposition, European Council president Donald Tusk admitted yesterday. More must be done to prevent European voters looking for ‘radical and brutal’ political alternatives, he told a conference to mark 40 years of the European People’s Party – the largest group in the European Parliament. Voters in Austria last month narrowly avoided voting in Europe’s first far-Right political party since the Second World War. Speaking in Luxembourg, Mr Tusk said: ‘Obsessed with the idea of instant and total integration, we failed to notice that ordinary people, the citizens of Europe, do not share our Euro-enthusiasm. ‘Disillusioned with the great visions of the future, they demand that we cope with the present reality better than we have been.’ He said the ‘spectre of a break-up is haunting Europe’, and ‘a vision of a federation doesn’t seem to me the best answer to it’. He spoke as leading Leave campaigner Chris Grayling warned that voting for the EU as it stood was not an option because a ‘United States of the Eurozone’ was inevitable. He said: ‘There has to be a single government structure for the eurozone. There will be no reformed European Union, British style.’ Advertisement

The statement adds: ‘It was Government policy that “EU migrants should have a job offer before they come here”. The Government failed to achieve this during the renegotiation of our membership.’

On BBC Two’s Britain And Europe: For Richer Or Poorer? last night, Mr Johnson claimed the referendum was a struggle between normal people who want to ‘take back control’ and an elite that ‘does very well’ out of the EU.

Today’s pledge is likely to unnerve Mr Cameron and Mr Osborne, who are keen to move the debate on from migration.