Illegal immigrants would be put on a plane before they get the chance to appeal under Conservative plans to rip up deportation laws . Home Secretary Theresa May wants to implement a new regime of 'deport first , appeal later ' . The rules , to be brought in if the Tories are re-elected , would apply to anyone with an expired visa or those living in Britain without permission . The only exceptions would be asylum-seekers or migrants who could suffer 'irreversible ' harm if sent back to a dangerous country . The move seeks to end the racket of thousands of illegal immigrants being able to prolong their stay in Britain for months or even years by lodging a string of appeals and judicial reviews . The only exemptions to the new rules would be asylum seekers or migrants who could suffer 'irreversible harm ' if sent back to their home country . File image used . Officials also hope the crackdown – central to Tory manifesto plans to slash net migration – will save the taxpayer money . Migrants will still be able to appeal – but must do so from their country of origin . It is thought that fewer people will then attempt to play the system , sparing the UK taxpayer the cost of holding them in an immigration centre or paying for housing . The Conservative manifesto is yet to be completed and has undergone a series of re-writes in recent weeks . But senior Government sources say it will once again contain a target to slash net migration – with renewed focus on removing more people from the country as a way of achieving it . Mrs May is pressing for a firm restatement of the Prime Minister 's 'tens of thousands ' target – despite the fact it was missed spectacularly . David Cameron remains committed to slashing net migration – the number of people arriving in the country against those leaving – which currently stands at 298,000 . By increasing the number of illegal immigrants who are removed from the country , it makes it easier to hit the target . Until now , the focus has been primarily on reducing the numbers coming in . Home Secretary Theresa May wants to implement a new regime of 'deport first , appeal later ' should the Tories gain re-election . Mrs May , hinting at the plans earlier this month , said : ' I think we will keep the target . It is important because it is about not just dealing with those coming into the system , but also about making sure that those people who should n't live here actually leave . ' Tory insiders are satisfied the so–called 'non-suspensive appeals ' policy is legally water-tight and will not be derailed by Labour 's Human Rights Act . On a smaller scale , Mrs May has for the past year been deporting foreign criminals under an identical 'deport first , appeal later ' regime . So far the move has seen 600 offenders sent home before their appeals were exhausted . Deportees and their lawyers lodged a series of judicial reviews against the scheme in the hope it would be ruled unlawful . But in a string of test cases , judges found there was no barrier to making foreign offenders lodge their claims from their home countries . Those kicked out so far include a Nigerian woman who claimed to have a human right to a family life in the UK – despite being convicted of repeatedly beating her own child . Under the old system she could have delayed her case for years by lodging a string of appeals in the British courts . With an estimated one million illegal immigrants living in the UK , the Home Office has a large group to target . But campaign groups have raised concerns that the department lacks the resources to track them all down . MigrationWatch said the £1.8billion Britain spends securing borders and removing illegal immigrants and foreign criminals was 'clearly inadequate ' – and six times less than the estimated £12billion overseas aid budget . While the number of migrants arriving in the UK has increased sharply in recent years , the number being removed has stayed flat at around 100,000 every year . The Mail understands Mr Cameron is considering including two different targets in the final manifesto . In addition to the 'tens of thousands ' target , he could also opt for a specific pledge to slash net migration from outside the EU – which , unlike EU migration , ministers can fully control . Earlier this week , research based on an analysis of the British Social Attitudes Survey found voters in every different ethnic group in Britain want immigration reduced . Some 60 per cent of Asian respondents wish to see immigration reduced – 38 per cent by a lot .
Mrs May May wants to implement new 'deport first , appeal later ' regime . The rules would be brought in if the Tories win the General Election . Exceptions would only apply to migrants at risk of 'irreversible harm ' Move seeks to end racket of immigrants prolonging stays using appeals .