This document discusses effective report writing for criminal justice professionals. It emphasizes that reports must be accurate, complete, concise, organized, understandable, and timely. They are used to examine past cases, continue investigations, prepare court cases, and more. Effective reports are written in a clear, factual, objective manner. The writing process involves gathering information, organizing it, drafting a report, and revising it. Common types of law enforcement reports include offense/incident reports, arrest reports, and supplemental reports. Taking thorough field notes is the starting point for any effective report.