The dog lost its property and didn't show the monitor.

Legal analysis: you can call the police to check.

Legal basis: Article 12 of the Regulations on Dog Breeding Management. Before an individual raises a dog, he shall obtain the consent of the residents' committee and the villagers' committee. For those who meet the requirements of raising dogs, the residents' committees and villagers' committees shall issue certificates that meet the requirements of raising dogs, and sign letters of responsibility with them. Dog breeders shall, within 30 days from the date of obtaining the certificate issued by the residents' committee or villagers' committee that meets the requirements for raising dogs, go to the district or county public security organ where they live to register dogs and obtain a dog registration certificate. If the dog has gone through the relevant registration certificate and asked him to show relevant certificates, the person should return the dog. If that person doesn't give it, he can report it to the public security department, and the public security department will help him get the dog back.