What's that smell? For specially trained detection dogs, it could be the scent of dangerous drugs, a bomb, or even a deadly disease! Detection dogs use their amazing sense of smell to find drug smugglers and sniff out dangerous weapons and explosives before they can harm anyone. For the dogs, it's all a fun day at work! Discover how canine heroes use their special noses to save lives every day in Detection Dogs, part of the Dogs on the Case series.