This report details the statistical methods and data collection processes employed by the United Kingdom Home Office to track immigration in 1985. It outlines the definitions used for different categories of immigrants and the sources from which this data was gathered. The document serves as a foundational record for understanding the official figures and their compilation during that period.

This publication is a primary source document detailing the official statistical framework for immigration in the United Kingdom during 1985. Its value lies in its direct presentation of the government's methodology and data points from that specific year. Researchers and historians studying immigration patterns, government policy, or the administrative history of the UK will find this report a crucial reference for understanding the official figures and their context.