During the last decade, a significant number of scientific studies have supported the use of human scent as a biometric tool and indicator of the presence, or absence, of an individual at a crime scene. These findings even extend to conducting scent identification line-ups with suspects. Human Scent Evidence focuses on some of these recent advances

During the last decade, scientific studies have supported using human scent as a biometric tool and indicator of the presence or absence of an individual at a crime scene. This book focuses on some of these recent advances in the use of human scent as forensic evidence. It examines theories of human odor production, the legal significance of results, and canine scent work from multiple search categories as described in the Scientific Working Group on Dog and Orthogonal detector Guidelines (SWGDOG). It also explores current trends in scent collection techniques, including devices, materials, and storage protocols.

Intraspecific communication involves the activation of chemoreceptors and subsequent activation of different central areas that coordinate the responses of the entire organism—ranging from behavioral modification to modulation of hormones release. Animals emit intraspecific chemical signals, often referred to as pheromones, to advertise their presence to members of the same species and to regulate interactions aimed at establishing and regulating social and reproductive bonds. In the last two decades, scientists have developed a greater understanding of the neural processing of these chemical signals. Neurobiology of Chemical Communication explores the role of the chemical senses in mediating intraspecific communication. Providing an up-to-date outline of the most recent advances in the field, it presents data from laboratory and wild species, ranging from invertebrates to vertebrates, from insects to humans. The book examines the structure, anatomy, electrophysiology, and molecular biology of pheromones. It discusses how chemical signals work on different mammalian and non-mammalian species and includes chapters on insects, Drosophila, honey bees, amphibians, mice, tigers, and cattle. It also explores the controversial topic of human pheromones. An essential reference for students and researchers in the field of pheromones, this is also an ideal resource for those working on behavioral phenotyping of animal models and persons interested in the biology/ecology of wild and domestic species.

Whether you’re searching for drugs or a missing person, K9 Scent Training will improve your K9 team’s capabilities in the field. Use proven techniques to train your dog for: Scent identification line-ups to indicate a scent connection between crime-scene evidence and a suspect. Tracking along a wide variety of track types, including the cold track, the broken-off track and tracks that run over or under cross-tracks. Detection work for searches in buildings, vehicles, open terrain and more. In this must-have guide for SAR teams and police K9 trainers and handlers, Dr. Resi Gerritsen and Ruud Haak present everything you need to know to build or improve a scent training program. Scent training involves high-stakes work, and in the case of a search for a missing person, the right training for your K9 can mean the difference between life and death. Beginning with the science behind odors and how dogs perceive them, Resi and Ruud show you how to harness that knowledge to eliminate training problems and maximize your dog’s potential. You’ll learn how to start scent training for young dogs using simple exercises before building up to more complex training. Finally, using techniques they’ve perfected over decades, Resi and Ruud share their specialized, step-by-step programs for advanced scent identification training and tracking. Get a free ebook through the Shelfie app with the purchase of a print copy.

Death, Decomposition, and Detector Dogs: From Science to Scene is designed to help police investigators and Human Remains Detection K9 handlers understand the basics of forensic taphonomy (decomposition) and how to most effectively use a human remains detection (HRD) K9 as a locating tool. The book covers basic anatomy and the physiology of canine olfaction along with some of the unique characteristics that allow a dog to work. Using concise and understandable explanations along with numerous photographs, the book covers the stages of decomposition and how they are affected by the environment; what is currently understood about the chemical profile of odor from human remains; how weather, topography, ground cover and terrain can affect odor dispersion; and different types of mapping and weather data that can be used before and during deployment of the HRD K9. The final chapter ties it all together by providing case reports about decedents who have been found in different locations in a variety of environmental conditions. By learning how these variables can affect how and what is found, handlers and investigators will be better prepared to meet the challenges of their jobs.

Odour in Textiles: Generation and Control presents the essential science and mechanisms behind the formation of odours in textiles. It discusses consumer perception of odour in clothing, the mechanism of odour formation in the skin, and the role of textile fibres and structures in odour formation. It also discusses odour controls and testing methods available for measurement of odours in textiles. Features: • Fills a gap in the literature as the first book to focus on textile and odour interaction • Discusses microbiological aspects of odour formation in simple terms • Details the role of textile fibres and structures on odour formation • Describes various testing methods, standards, and regulatory norms for odour analysis This book will appeal to a broad audience, including industry professionals in the textiles industry, hygiene and health care, the chemical and finishing industry, and odour measurement and testing. It will also interest advanced students and research scholars studying textile engineering, clothing science, and fashion design.

It is essential that those in the criminal justice system understand the tasks that police dogs perform and the evidence that their work produces. Police and Military Dogs: Criminal Detection, Forensic Evidence, and Judicial Admissibility examines the use of police and military dogs for a wide variety of functions and explores canine biology and be

Detection canines have been utilized throughout the world for over a century, and while numerous attempts have been made to replicate the canine’s ability to detect substances by mechanical means, none has been as successful. The olfactory system is a highly intricate and sophisticated design for chemical sensing, and the olfactory capacity of many animals, including canines, is considered unmatched by machine due to not only their great sensitivity and superior selectivity but also their trainability and mobility. These unique features have led to the use of such animals as "whole-animal" biosensors. Amplifying the benefits and diminishing the limitations of detection canines' interdisciplinary research is crucial to understanding canine olfaction and detection and enhancing this powerful and complex detector. The past 50 years have produced vast advancements in animal behavior/training technology to develop canines into more proficient and reliable sensors, while scientific research has provided tremendous support to help practitioners better understand how to utilize this powerful sensor. This book assembles a diverse group of authors with expertise in a variety of fields relating to detection canines and the chemical sensing industry, including both research and operational perspectives on detection canines. It illustrates how science enhances our understanding of how canines are employed for solving some of the world’s leading detection challenges.