At the end of their whirlwind presentation, no one doubted that they could find a pea-sized hunk of marijuana under a princess's stack of mattresses. In fact, these dogs have been trained to not only find the substances, but to indicate whether or not the found items were drugs or explosives. When the dogs found any type of explosive, they actually layed down next to the object. They could be found romping and playing with conference attendees, vendors and their handlers. How Dogs Can Help in Schools Drugs and explosives are, unfortunately, fairly common in many of our high schools and colleges.
Dogs have the innate ability to separate out smells.
For example, walk into the cafeteria and you may smell the unmistakable odor of beef stew. Drug and explosive-sniffing dogs can reduce the number of related incidents dramatically.