asked the Secretary of State for the Home Department on what basis the immigration figures are prepared and published.
The control of immigration statistics, for which the Home Office is responsible, are published quarterly, in summary form, in Home Office statistical bulletins, and, in more detail, annually in the Command Paper "Control of Immigration Statistics." Copies of these publications are available in the Library of the House: the most recent statistical bulletin is issue 8/80 and the most recent Command Paper, for 1979, is Cmnd. 7875. Information about the basis on which the statistics are compiled can be found in the notes to these publications.