Addressing what remains a critical issue in homeland security, this book discusses the inter-agency sharing of intelligence, highlighting coordination between agencies and offering directions on how to set up shared databases. Keeping officers abreast of how to gather intelligence on activities both domestic and foreign, this third edition includes sweeping updates on several topics, such as national information sharing and suspicious activity reporting, fusion centers, and the role of the financial investigator. Italso presentsmaterial onsource development and management, Intelligence Led Policing (ILP), and radicalization and indicators. New and updated illustrations are included.?