Detecting the movement of metal objects across a protected boundary: method. Laboratory Manual. Work on the course "Protection" by author B. N. Levkovich is a unique manual that will become an indispensable assistant for students, graduate students and specialists in the field of security and protection. In it, the author shares his knowledge and experience, offering readers a deep understanding of methods for detecting metal objects that may pose a threat in protected areas. From the first pages of the book, the reader is immersed in the world of modern technologies and methods used to ensure security. Levkovich not only describes the theoretical aspects, but also offers practical tasks that will help to consolidate the knowledge gained. This manual will be an excellent addition to the protection training courses, and will also be useful for those interested in security issues at a deeper level. The book is addressed to a wide range of readers: from students of technical and legal specialties to practitioners in the field of safety and security . If you want to understand how detection systems work and what technologies are behind them, this guide will be a real find for you. It will be interesting both for those who are just beginning their journey in this area, and for those who already have experience and want to deepen their knowledge. The topics raised in the book cover a wide range of issues: from the basics of physics and the principles of operation of various detectors to the practical aspects of their application in real conditions. Levkovich emphasizes the importance of understanding not only technologies, but also the context of their use. He emphasizes that security is not only a technical issue, but also a social one, requiring an integrated approach and interaction of various specialists. The author’s style is distinguished by clarity and accessibility, which makes complex concepts understandable even for readers who do not have special knowledge. Levkovich uses many examples from practice, which allows him to better absorb the material and see its application in real life. His previous work is also noteworthy, as he is the author of several training manuals and articles on safety and protection issues. This book will not only teach you the basics of detecting metal objects, but will also make you think about broader safety issues in our society. At a time when the threat of terrorism and other crimes is becoming more relevant, knowledge of methods of protection and detection becomes necessary not only for professionals, but also for every citizen. If you are looking for literature on topics such as safety, security, detection technology or teaching methodology, “Detecting the movement of metal objects across a protected boundary” will be a valuable source of information for you. This book will not only expand your knowledge, but also inspire new ideas and approaches in the field of security. Do not miss the opportunity to get acquainted with the work in . N. Levkovich and take a step towards a safer future .