Marriage migration is a controversial and problematic issue in the UK as elsewhere in Europe. This timely analysis is a comprehensive examination of the regulation of marriage migration into the UK. With international relevance, the book uses the analysis to examine the relationship between government priorities and the dynamics of transnational family life. The book is one of the first to scrutinise the control of UK marriage migration after 1997 and explores the dilemmas faced by the post-1997 government in managing this form of migration in a changed domestic and international environment. Using high-quality sources from across the political spectrum, it analyses regulatory decisions made by government, the judiciary and the visa service, and suggests that there is an unofficial and unarticulated hierarchy predicated on assumptions and beliefs about acceptable marriages. Finally, the book establishes a principled basis for the future regulation of marriage migration.