HC Deb 12 March 1998 vol 308 c339W
Mr. Goggins

To ask the Secretary of State for the Home Department what assessment he has made of the contribution of immigration checks to the detection of illegal immigrants. [34168]

Mr. Mike O'Brien

Experience has shown that it is highly ineffective and wasteful of resources to use such checks as a means of pursuing inquiries in individual cases. For many years now, and to much greater effect, enforcement inquiries have been intelligence based.