This book focuses on the issue of immigration to the United Kingdom (U.K.). Causes of migration, such as economic opportunities and emergency political refuge, are discussed in terms of the need for the government to devise an effective and just immigration system. Immigration laws of Norway, Sweden, Australia, Canada, and the U.K. are outlined, and the employment situation, civic rights, standard of living, and social benefits for immigrants are described. Legal, economic, moral, and political theories behind the formulation of policy in various countries are reviewed. The history of government efforts to restrict immigration is shown to be immediately related to ethnic/racial prejudice. The 1971 Immigration Act is held to be designed principally to keep out unwanted people rather than to achieve the social or economic benefits which can accrue from a more far-sighted policy. Some alternatives are explored, taking into consideration joint policies developed by the European Economic Community and restrictions imposed on immigration from within the Commonwealth and from dependent territories. Selection principles which would allow immigration to be controlled on a non-racial basis are suggested. A new administrative machinery for the U.K. which would provide fair and courteous service to immigrants is recommended. (GC)