I am advised that of such records that are held locally, two members of staff were detected as not having valid leave to remain in the United Kingdom at the time of their employment. One in 2004, and one in 2005.
In addition, 12 contracted workers have been identified as having worked on Home Office premises illegally: eight this year, two in 2005, one in 2004 and one in 2002.
The Immigration and Nationality Directorate does not currently record the information requested. The provision of this information could therefore be obtained only at disproportionate cost.
The provision of this information could only be obtained through review of individual case files and could be supplied only at disproportionate cost.
Police will be provided with advice by the relevant local enforcement office in the event that resources do not permit attendance in person by an Immigration Service official.
Data on the number of separate pieces of information about illegal residency received by the Home Office are not currently recorded centrally and therefore not available.