If the dog is lost, can you find someone by photographing this person and taking the dog away?

Of course. If the dog is lost, you need to report to the public security organ if you photograph this person with a dog. Give the police the surveillance evidence, let the police find it, and you can find the person who leads the dog. Dogs belong to the subspecies of Canidae, belonging to the gray wolf species. There are many varieties, different postures, and different varieties have great differences in body shape.