This book is a comprehensive guide to the validation of models used in fraud detection and anti-money laundering (AML) compliance for financial professionals. Focusing on the critical aspects of data quality, transaction monitoring, and customer risk rating, this book equips readers with the knowledge and tools to ensure that their models meet regulatory standards and effectively mitigate financial crime risk. As financial crimes become more and more sophisticated, there is a growing need for a specialized resource that addresses both the technical and regulatory challenges financial managers are facing . Offering a framework, tools, and case examples as well as incorporating the role of AI, this book helps readers ensure that their models are robust, reliable, and capable of detecting and preventing financial crimes effectively.