What is the primary function of a detection dog?

The primary function of a detection dog is to identify the presence of narcotics or explosives. These specially trained dogs have an exceptional sense of smell, which allows them to detect specific scents related to illegal substances, explosives, and sometimes even accelerants used in arson. Their work is crucial in various settings, including airports, border controls, and law enforcement operations, where they assist handlers in locating hidden drugs or explosives that could pose a threat to public safety.

In contrast, while companionship is important for a handler-dog relationship, it is not the primary role of detection dogs. Their purpose is far more focused on utilitarian tasks related to safety and security. Performing tricks for entertainment is a skill that some dogs may possess, but it does not relate to their primary function as detection animals. Similarly, guarding property from intruders describes a different type of canine role that emphasizes protection rather than detection. Therefore, the specific training and capabilities of detection dogs align directly with their primary function of identifying dangerous items, making this the correct answer.