Sniffer dogs, also known as detection dogs, are specially trained canines that use their keen sense of smell to identify specific substances. They are commonly used by law enforcement agencies to detect drugs, explosives, and even certain medical conditions in humans. Their ability to distinguish between different scents makes them valuable in various situations, including search and rescue operations. These dogs undergo rigorous training to enhance their natural abilities. Breeds like Labrador Retrievers, German Shepherds, and Beagles are often chosen for their strong olfactory senses and temperament. Sniffer dogs play a crucial role in maintaining safety and security in public spaces, airports, and other high-risk areas.