It is unlawful for the owner or any other person having the possession, care, custody or control thereof, to permit any dog or cat to run at large upon public streets or walks or parks or upon private property of the town, other than the dog or cat owner’s property, unless such dog be attached to a leash of not more than 12 feet in length, of sufficient strength to restrain such dog and each dog or cat shall be kept under the control of the person accompanying it. [Added during 2020 recodification.]