The book contains documentary essays on investigations of serial murders in Australia - in the city of Perth and its suburbs in the first half of the 1960s, in the Belanglo forest in the 1990s. and the famous “cases in barrels case” in the small town of Snowtown at the very end of the 20th century. The author analyzes in detail both the criminal tactics of criminals and the course of operational search activities to expose them. The book is intended for a wide range of readers interested in the history of criminal investigation.