It shall be the duty of every police officer, peace officer, and dog warden in the city to apprehend any dog running at large in violation of this chapter and any unlicensed dog in the city, and to impound such dog in the city dog pound or other suitable place. The apprehending official shall make a complete record of each dog apprehended, entering the breed, color, approximate age, and sex of the dog, and whether licensed. If the dog is licensed, the apprehending official shall enter the name and address of the owner and the number of the license tag.
('60 Code, § 4-12)