As part of legislation introduced through the Immigration Act 2014, carriers and port operators in the aviation, maritime and international rail industries were given the power to carry out embarkation checks. Since 8 April 2015 departure data has been collected on all scheduled commercial services departing the UK from air and sea ports and from international rail stations except those services not within the scope of the exit checks programme.

The analysis in the report focuses on individuals who had both valid leave and were identified as having entered the UK after April 2015, when the exit checks programme was introduced.

Brandon Lewis, Immigration Minister, said:

The Home Office introduced exit checks in 2015 to provide more comprehensive information on travel movements across the UK border.

This information has already been invaluable to the police and security services who have used it to help track known criminals and terrorists, supporting wider work taking place across government and law enforcement.

The report found that among the 1.34 million visas granted to non-EEA nationals which expired in 2016/17, 96.3 per cent departed in time.

Brandon Lewis said:

Today’s report also gives us a more comprehensive picture of the compliance of visa holders, clearly showing that the vast majority of people are following immigration rules and that the action we’re taking to clamp down on illegal immigration is working.

Exit checks is a long-term programme and the data collected will continue to be assessed and analysed to ensure that they become more robust and extensive over time.

Read the second publication into exit checks.

Professor Aston’s role will be to ensure that departmental decisions are informed by the best science and engineering evidence and advice. The Chief Scientific Adviser offers advice directly to ministers and officials and works together with the Chief Scientific Advisers’ network to advise on issues that cut across government.

Professor Aston’s appointment follows the retirement of Professor Bernard Silverman earlier this year. He will join the Home Office on 4 September from the University of Cambridge, where he is Professor of Statistics.

Professor Aston specialises in applied statistics but will provide advice on a range of issues at the Home Office. He was, until recently, a trustee of the Alan Turing Institute, and has previously spent much of his career working in the United States and Taiwan.

Speaking ahead of starting his new role, Professor Aston said:

I am honoured and privileged to be joining the Home Office as its Chief Scientific Adviser. I’m looking forward to working with the scientific community to understand the issues facing the Department over the coming years and identify how science, engineering and analysis can help to overcome those challenges.

Patsy Wilkinson, Second Permanent Secretary at the Home Office, said:

Professor Aston brings with him a wealth of experience that will be of great value in ensuring the work we do to keep our country safe and secure continues to be supported by the latest scientific advice and research.

Professor Sir Mark Walport, the Government Chief Scientific Adviser, said:

Having access to high-quality expert scientific advice is critical to every government department. I am delighted to welcome someone with Professor Aston’s expertise to the Chief Scientific Advisers’ network and look forward to working with him.