Service or assistance dogs are trained to help disabled persons.
A true service dog is trained to behave properly in all situations, so it can go anywhere with its handler.
Animal-assisted therapy uses trained, certified animals to treat patients.
Therapy dogs visit hospitals and nursing homes to comfort the sick and disabled.
Police dogs guard their handlers. They can track and arrest fleeing criminals.
The most frequent police canines are German shepherds and Belgian Malinois.
Police dogs and military working dogs help in missions.
German shepherds, Dutch shepherds, and Belgian Malinois dominate military working dogs.
Positive reinforcement motivates detection dogs, who have excellent senses of smell.