A human smell is a particular type of microtrace.
Based on our experience with tracker dogs, we believe that an offender can be identified by the particular smells he leaves behind at the crime scene. Each person has a distinctive smell; this has been proven by experience as well as by experiments using various apparatus.
Mass spectrography has also been used to analyze and identify human odors. The identification of offenders by analyzing traces of their odors has increased in importance as it has been scientifically proven that no two individuals smell alike. All humans perspire. When it is hot, odor molecules from human perspiration disperse into the environment; this dispersal increases as the temperature increases.
The human body seeks to maintain its average body temperature As well, when we experience fear, or undergo physical or emotional exertion, our body temperatures rise, which leads to increased perspiration and accompanying odor. The entire human body emits smells.
For example, when we walk across a room, odor molecules are released onto the floor and become attached to other objects we touch. Thus, despite any and all meticulous precautions he may take, an offender cannot avoid leaving traces of his specific smell at the scene of a crime. He can neither destroy secretions nor prevent them from forming. Even a dog with a natural talent for sniffing things out must be trained well in order to be able to identify odors correctly. Daily training, increasing in difficulty as the training period progresses, helps dogs develop conditioned reflexes.
The sole aim of training a dog to identify odors is to teach him to make optimum use of his exceptional gifts in order to meet human needs.
It has long been known that females have a better sense of smell than males, so it might seem surprising that police dogs are almost exclusively males hence the use of the masculine pronoun relative to dogs throughout this book. It seems that the presence of females, particularly when in heat, can upset males. Most spayed also called neutered or castrated females, however, do not cause the same upset to males, nor do they experience periodic decreases in their sense of smell, and so their search work is consistent.
In this book, we have drawn up special training programs to this effect, and the overall effectiveness of the exercises has been demonstrated in practice. Drawing from our extensive experience in training our many service dogs the sorting, tracking, and detecting skills they need to find, for example, drugs or explosives, we have laid out here the specific exercises your dog needs to practice to become a scent-detection expert. In this book, we also tell you about the mistakes that can be made in different training programs, clearly justifying our method. Moreover, we insist that teaching a dog to track is the logical next step after teaching him how to sort odors.
And, of course, in this book you will find the necessary hints and tips that will help you help your dog learn. Following are the first three Identification: When sorting odors, always be aware of the so-called Clever Hans effect, by which a dog reacts to minimal and often unconscious changes in posture or other small movements made by you, the handler, or others present, as soon as he approaches the matching odor.
You can read more about this subject in our book K9 Fraud! Detection: Although it is not pleasant, always take a close look at dog waste bags. Several times we have found drugs in such bags, casually placed next to other poop bags or near garbage bins. Identifying the odors you present to your dog is not a natural activity for him, and so he must be specially trained to do so.
A dog does not identify a human smell just because it is there.
A scent-detection dog does this for his handler and for the reward he gets in return. Always remember that your behavior and skills as a handler have a profound influence on your dog. His accomplishments are the result of the tight bond he has with you, his two-legged partner. Table of Contents Introduction 1. Living in different worlds 2. Human odor on objects 3. Human odor on a track 4.
Odors and perception 6. Scent training for young dogs 7. Training scent identification dogs 8.
Training tracking dogs 9. Training detector dogs. Brand new: lowest price The lowest-priced, brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable. ISBN , Whether you re searching for drugs or a missing person, "K9 Scent Training" will improve your K9 team s capabilities in the field. Detection work for searches in buildings, vehicles, open terrain and more.
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K9 Scent Training: A Manual for Training Your Identification, Tracking and Detection Dog (K9 Professional Training Series) [Resi Gerritsen, Ruud Haak] on . Editorial Reviews. Review. Provides beginners and pros alike with a handy guide to what you K9 Scent Training: A Manual for Training Your Identification, Tracking and Detection Dog (K9 Professional Training Series) - Kindle edition by Resi Gerritsen, Ruud Haak. Download it once and read it on your Kindle device, PC.
Additional Product Features Author s. Resi Gerritsen and Ruud Haak are world-renowned specialists in the field of dog work and the authors of more than 30 titles on dog training.