From one of the earliest concerns of morality and political philosophy to the subject of a global treaty sponsored by the United Nations, corruption has always played a major role in economic and political affairs. Corruption’s importance as a matter of law and policy has grown in recent decades, thanks to an increasing awareness of its devastating effects on democratic governance, economic performance, development efforts, human rights, and environmental protection efforts. Responding to that growing importance, this subject provides an overview of domestic, regional, and global approaches to corruption. Although this seminar considers many aspects of anti-corruption law and policy, it covers issues of democratic integrity in greater depth. This includes a focus on systemic corruption affecting elections and law-making, with particular attention to New Zealand, the United States of America, and Australia. Relatedly, it includes in-depth coverage of several “global pressure points” (including political financing, lobbying, and conflicts of interest), which have become focal points for legal development at domestic and international levels. The domestic approaches to corruption examined in this seminar include those undertaken by New Zealand, the United States, and Australia, as well as a sample of Latin American and Asian countries. The regional approaches targeted include those sponsored by the Organization of American States, the Asian Development Bank, Asia-Pacific Economic Cooperation, Council of Europe, the Organisation for Economic Co-operation and Development, and the World Bank. Finally, at the global level, this seminar covers the United Nations Convention Against Corruption (UNCAC). Because almost all countries in the world have ratified UNCAC and are working to harmonise their domestic laws with its terms, UNCAC serves as the primary source of law analysed in this subject. Entering into force in 2005 and obtaining 191 States Parties as of August 7, 2024, UNCAC has taken incredible strides towards a global, comprehensive and partially binding approach to corruption. This subject explores the five pillars of that approach—international cooperation, preventative measures, criminalization and law enforcement measures, asset recovery, and technical assistance and information exchange. At each of its three levels of legal inquiry (domestic, regional, and global), this seminar examines questions of substantive law (what conduct is targeted), procedure (how are suspected violations of the law exposed and addressed), institutions (how are legal frameworks administered), and effectiveness. Notably, this subject addresses arguments in favour and against different conceptions of corruption, exposing the contested ideological side of this field. Although this subject relies primarily on legal analysis, it is informed by other academic disciplines, especially economics, political science, and philosophy. This transdisciplinary approach facilitates the consideration of broader questions that inform anti-corruption law, such as these: How are definitions and patterns of corruption changing over time? What effects does corruption have on development, businesses, local economies, and global capitalism? What effects does it have on human rights, democratization, elections, and lawmaking? What lessons have been learned about the effectiveness of different legal approaches to corruption? How could domestic, regional, and international anti-corruption initiatives be improved? What normative views of democracy and capitalism are bound up with the choice of legal regime?