Drugs Detection
How Does It Work
In the initial stages Watchdogs Ltd will liaise with the client to establish the best operational situation for deployment. This will involve obtaining information from the client to determine key points and areas of which require searching.
Once this has been established Watchdogs will compile an effective work method statement and Risk Assessment agreed by both parties after consultation. This statement will show ‘how’ we will deploy our services and that it is executed in the best interests of Health and Safety.
This service may be a high visual service to establish a wide visual deterrent or a strictly confidential service out of hours.
You will receive a full report and the end of the service containing all the relevant details of the search. This will assist in maintaining your ‘Health and Safety Drugs Policy’
Watchdogs Ltd are licensed by The Home Office to store and transport ‘live’ controlled substances thus ensuring our dogs are trained to the highest of standards at all times.
The dog’s ability to detect a ‘target scent’ is far grater than any machine could ever be manufactured.
Olfactory epithelium
In vertebrates smells are sensed by olfactory sensory neurons in the olfactory epithelium. The proportion of olfactory epithelium compared to respiratory epithelium (not innervated) gives an indication of the animal’s olfactory sensitivity. Humans have about 10 cm² of olfactory epithelium, whereas some dogs have 170 cm². A dog’s olfactory epithelium is also considerably more densely innervated, with a hundred times more receptors per square centimeter.
Molecules of odorants passing through the superior nasal concha of the nasal passages dissolve in the mucus lining the superior portion of the cavity and are detected by olfactory receptors on the dendrites of the olfactory sensory neurons. This may occur by diffusion or by the binding of the odorant to odorant binding proteins. The mucus overlying the epithelium contains mucopolysaccharides, salts, enzymes, and antibodies (these are highly important, as the olfactory neurons provide a direct passage for infection to pass to the brain).











