It shall be unlawful for any person owning, controlling or having in his/her care or keeping any dog, whether licensed or unlicensed, to suffer or permit such dog to be at large upon the streets, alleys or public places or upon any vacant, unoccupied or unenclosed lots, lands or premises within the city unless such dog is on a leash and under the control of a person. (Ord. 973, 2-20-1990)