The book "Activities of the operative criminal investigation officer in the course of pre-trial proceedings", written by the team of authors, is a unique and in-depth study devoted to one of the most urgent and complex topics in the field of criminal law and law enforcement . This publication will be of particular interest to those who seek to understand the intricacies of the work of operational employees, as well as those who are interested in the legal aspects of investigating crimes. The main purpose of the book is to reveal the main aspects and methods of work of operatives in the process of pre-trial proceedings . The authors consider in detail the various stages of operational-search activity, starting from obtaining information and ending with the collection of evidence. In the book you will find many examples of practice that will help the reader to better understand how work is carried out in real criminal cases. At the same time, the authors avoid excessive theorization, focusing on the practical application of knowledge. This book will be useful not only for professional lawyers and law enforcement officers, but also for law students, as well as for anyone interested in criminology and law. It can be an excellent addition to study materials and a guide to preparing for exams. In addition, the book will be of interest to a wide range of readers who want to learn more about how the criminal justice system works in our country. The topics raised in the book cover many aspects of the work of operatives: from interaction with other law enforcement agencies to the use of modern technologies in the investigation of crimes. The authors emphasize the importance of ethical norms and the legality of the actions of operatives, which makes the book especially relevant in the light of modern challenges faced by the law enforcement system. The style of presentation of the authors is clear and accessible, which allows the reader to easily absorb the material presented The book uses live examples and real cases, which makes reading not only informative, but also fascinating. The authors strive to convey to the reader not only theoretical knowledge, but also practical skills that can be useful in real life. The book "Activities of the operative criminal investigation officer in the course of pre-trial proceedings" can become a reference for anyone who wants to understand more deeply how the criminal justice system functions and how the fight against crime is carried out in practice. It can also be useful for journalists researching criminology topics, as well as for anyone interested in security and law enforcement issues. If you are looking for literature that will help you understand the intricacies of the work of operational employees and give you the opportunity to look at the law enforcement system from a new angle, this book is exactly what you need. It will not only expand your knowledge, but also allow you to think about many important issues related to human rights, the rule of law and ethics in law enforcement. Do not miss the opportunity to immerse yourself in the world of criminal investigation and learn how crime is actually fought.