When drug detection dogs search for drugs, they mainly rely on their keen sense of smell. Dogs are born with an excellent sense of smell, and drug detection dogs are specially trained to recognize specific odors, including those of many drugs.

During the training process, drug detection dogs will learn how to distinguish different smells and form a conditioned reflex to the smell of drugs. In this way, they can quickly search and locate drugs in various environments and objects when performing tasks.

In addition, drug detection dogs also have good hearing and visual abilities and can cooperate with their trainers in precise search and positioning. During the search process, the drug detection dog will choose the appropriate search method and method based on the task requirements and on-site conditions to complete the task most efficiently.