Book excerpt: Field Manual (FM) 3-19.50 is a new manual for the Military Police Corps in conducting police intelligence operations (PIO). It describes the doctrine relating to: * The fundamentals of PIO; * The legal documents and considerations affiliated with PIO; * The PIO process; * The relationship of PIO to the Army's intelligence process; * The introduction of police and prison structures, organized crime, legal systems, investigations, crime conducive conditions, and enforcement mechanisms and gaps (POLICE)-a tool to assess the criminal dimension and its influence on effects-based operations (EBO); * PIO in urban operations (UO) and on installations; and * The establishment of PIO networks and associated forums and fusion cells to affect gathering police information and criminal intelligence (CRIMINT).