Training Manual . Author of M. A. Mikhailov . — Simferopol: Crimean Federal University named after V. and . Vernadsky, 2015. — 260 s. Memoirs of the famous Russian detective Arkady Franzevich Koshko , first published in France 90 years ago as “Essays of the Criminal World of Tsarist Russia” are of interest not only as stories of the detective genre , but also contain a description of the original tactics and combinations , which could be the basis of tactical decisions of today's investigators and operatives , Criminal Law Enforcement Agency . [ The author’s mention of fraudulent techniques used by criminals has a certain preventive value for potential victims who may suffer from the actions of today’s “Khlestakov” and “Kings of the Shulers” .............. For law enforcement officers, teachers, graduate students, students and cadets of law schools and a wide range of readers interested in the history of criminology Introductory article . Recalls Olga Ivanovna Koshko, granddaughter of the author of "outlines of the criminal world"Essays of the criminal world of tsarist Russia. Foreword to the first volume. Foreword to the second volume. Foreword by . General organization of operational and investigative work . Investigation of Intentional Murders . Investigation of arson. Investigation of fraud, forgery of documents, counterfeiting. Investigation of theft of other people's property