A guide for any reader who wants to form their own UFO investigation unit. It covers a range of UFO topics, describes the events as they were reported, and then looks at possible explanations. The emphasis is on discovering the truth, by highlighting techniques it aims to help readers distinguish between the real life unexplained incidents and hoaxes. The subjects included are the Roswell incident, UFOs in history, close encounters, satellites, natural occurences and weather anomalies.