What do bomb sniffing dogs smell




















Instead, she went live. President Richard Nixon gave the Federal Aviation Administration its own canine bomb-sniffing unit later that year. Almost everyone I spoke to had stories of dogs who sat down smartly next to a police officer who, it turned out, had recently fired a handgun at a firing range or had recently handled bomb-making material.

Where bomb dogs have really proved their mettle is on the battlefield. They find bombs on a regular basis in Iraq and Afghanistan. The unit had three dog teams attached to it. When we opened them up, we found an extensive IED cache, small arms weapons and mortar rounds along with det cord and other explosive material.

We might smell a teaspoon of sugar in a cup of coffee. A dog could detect a teaspoon in a million gallons of water—nearly enough to fill two Olympic-size swimming pools. Counterterrorism and warfare in general have lately taken a technological turn away from boots on the ground.

That no doubt helps save lives, but it has given the face of war a frightening metallic cast that unnerves people, even when the machines are on your side. There may be nothing less like a drone than a dog. It is hard to imagine a more high-hearted warrior. Dogs work for love, they work for praise, they work for food, but mostly they work for the fun of it.

The daily grind of combat takes a heavy toll on four-legged grunts, too. In , Army veterinarians started seeing dogs that showed signs of what they later took to calling canine post-traumatic stress disorder, for want of a more dog-centered diagnosis. Sometimes, the dogs just shut down.

Other times, they became jumpy. Lately, the numbers for canine PTSD have been climbing, to about 50 dogs last year—between 5 percent and 10 percent of dogs on the front lines. Caught early enough, says Burghardt, half the affected dogs can be treated and returned to active duty.

MSA explosive detection canines can be utilized to perform searches and sweeps at random times. This prevents would-be criminals from observing and choosing a time where security is low.

By employing dogs on a random basis, no time is safe or clear for criminals. MSA uses German Shepherds and other sporting and herding breeds, but our most common explosive detection canine is the Labrador Retriever. Through many repetitions, the dog retains the odor, and then never loses it and the appropriate response. This enables our canines to detect explosive ingredients in commercial, military, and improvised explosive devices making them a well-rounded defense against a wide variety of explosive threats in the modern security arena.

They are then matched with a handler based on personality and lifestyle traits and begin their training. No matter how much the traveller tries to conceal the substance, detection dogs are trained to detect illegal odours when they are tightly sealed or deeply hidden. They can identify individual scents even when the scents are combined or masked by other odours.

There is no denying that detection dogs cannot replace humans when it comes to airport security but what they can do is provide that extra security measure. Even though humans smell using most of the same equipment as dogs, there are differences. Dogs are better than us at sucking in odours. Initially, when presented with mixtures containing the oxidizer, the oxidizer-only dogs did not detect it in the mixture.

The number of correct hits, Hall said, was extremely low. However, after a few days of training and learning that if the odor smells a little bit like what he is trained for and he leaves his nose in the olfactometer long enough, the dog will be rewarded with a treat. For the dogs, if you don't force them to try to make the separation of elements, they won't. The results suggest Hall's original hypothesis was correct, that the dog's ability to detect a certain odor or mixture of odors depends on how it has been trained, and whether its training prepared the dog to detect that odor.

Hall said it's no different than how humans are programmed to recognize certain smells that trigger ideas of what could be producing that odor.

The dog is the same way. If you train a dog to detect something at a certain concentration. If you train a dog to detect a small amount of narcotics, then one day that dog is asked to find thousands of pounds of that narcotic, it's going to smell completely different because it's at a much higher concentration than what the dog is used to smelling. Hall's project was funded by the Office of Naval Research, meaning that with U.

While Hall's research shows that training a dog to detect mixtures produces a higher hit rate, the next step could be to train the dogs to sort through and detect different concentrations. At the same time, he wants to continue to experiment with the mixtures to determine if different combinations produce different results.

For example, how does the concentration of the other ingredients influence detection of the oxidizer? A new era of excellence is dawning at Texas Tech University as it stands on the cusp of being one of the nation's premier research institutions.

Research and enrollment numbers are at record levels, which cement Texas Tech's commitment to attracting and retaining quality students. In fall , the university achieved a goal more than a decade in the making, reaching a total student population of more than 40,



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