Forensic Investigation of Ammunition and Traces on It . Dmitry Demin’s UMP is a unique and deep dive into the world of forensics, focusing on one of the most complex and interesting topics the study of ammunition and traces left by them. This publication will certainly become an indispensable tool for both professionals in the field of criminology and for students studying law enforcement sciences. Demin, with extensive experience in law enforcement and scientific activities, offers readers not only theoretical knowledge, but also practical recommendations based on real cases. His style of presentation is clear and accessible, which allows even those who do not have a special education to easily assimilate complex concepts. The book includes an extensive analysis of various types of ammunition, methods of their research and interpretation of the results. The main intrigue of the book is how small details, seemingly insignificant traces, can become key in solving crimes. Demin emphasizes that each study is not just a work with materials, but also a real detective story, where each discovery can lead to the solution of a complex crime. Readers will be able to learn about how forensics works with firearms, what technologies and techniques are used to analyze traces, and how this data can be used in court. This book will be of interest not only to specialists in the field of criminology, but also to everyone who is interested in law, criminal investigations and detective stories. Law students, graduate students, as well as practicing lawyers and investigators will find in it a lot of useful information and inspiration for their work. In addition, fans of detectives and thrillers will be able to appreciate how scientific knowledge overlaps with works of art, creating fascinating stories. The themes raised in the book are diverse and multi-faceted. Demin addresses the issues of accuracy and reliability of forensics, discusses the ethical aspects of working with evidence, and emphasizes the importance of adhering to standards in research. He also draws attention to modern technologies, such as 3D modeling and computer programs, which help in the analysis of traces. This makes the book relevant in light of the rapid development of technologies and their impact on forensics. Dmitry Demin's style can be described as popular science: he skillfully combines complex scientific concepts with accessible language, which makes his work attractive to a wide audience. Among other well-known works of the author can be distinguished "Criminalistics: basics and practice", where he also shares his knowledge and experience, which confirms his status as an expert in this field. In conclusion, "Criminalistic investigation of ammunition and traces on them . UMP” is not just a training manual, but a real find for anyone who wants to understand the world of forensics more deeply. The book promises to be an indispensable resource for professionals and an exciting reading for fans of the detective genre, opening the door for the reader to the mysterious and exciting world of investigations.