[holding answer 25 February 2010]: Between 2007 and 2009, the UK Border Agency removed approximately 15,000 foreign national offenders from the UK. Of these, approximately two-thirds had previously received a single or cumulative sentence of one year or more of which one-third were removed either before or within one month of the end of their sentence. The remainder were not removed following the end of their sentence and were, instead, either detained in a prison, an immigration removal centre, or released under UK Border Agency contact management conditions or by the Independent Tribunal Service on bail. Information regarding removals from before 2007 is not available electronically and could be obtained only by reviewing individual records. This would incur a disproportionate cost.
This answer is based on internal management information and is subject to change.