noun
working dog
A dog trained to perform practical tasks, such as herding, guarding, or assisting people. Often used in contrast to companion dogs.
See also: ワーキングドッグ
警察では使役犬が麻薬の捜査に活躍している。
Working dogs are active in drug detection at the police.
盲導犬は使役犬の一種です
Guide dogs are a type of working dog.