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<p>The independent Office for National Statistics has confirmed that the International
Passenger Survey continues to be the best source of information to measure long-term
international migration.</p><p>Data collected at the border does not record passengers'
onward travel plans or duration of stay, so cannot be used to measure migration figures.
Over time the data obtained through exit checks will contribute to the statistical
picture and the ONS data on net migration figures, but it will not replace the current
IPS survey.</p><p>We do not recognise the 1% figure as the proportion of international
students that overstay. The Home Office is continuing to assess and analyse elements
of the exit check data collected in relation to specific cohorts to understand the
extent to which estimates provided are statistically robust. This level of detail
is not yet available.</p>
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