(A) Subject to the provisions of R.C. § 955.261(A)(2) and (3), a dog that is chasing or approaching in a menacing fashion or apparent attitude of attack, that attempts to bite or otherwise endanger, or that kills or injures a person, or a dog that chases, threatens, harasses, injures, or kills livestock, poultry, other domestic animal, or other animal, that is the property of another person, except a cat or another dog, can be killed at the time of that chasing, threatening, harassment, approaching, attempt, killing, or injury. If, in attempting to kill such a dog, a person wounds it, the person is not liable to prosecution under the penal laws that punish cruelty to animals. Nothing in this section precludes a law enforcement officer from killing a dog that attacks a police dog as defined in R.C. § 2921.321.
(B) The owner, keeper, or harborer of a dog is liable in damages for any injury, death, or loss to person or property that is caused by the dog, unless the injury, death, or loss was caused to the person or property of an individual who, at the time, was committing or attempting to commit a trespass or other criminal offense on the property of the owner, keeper, or harborer, or was committing or attempting to commit a criminal offense against any person, or was teasing, tormenting, or abusing the dog on the owner’s, keeper’s, or harborer’s property.
(R.C. § 955.28) Penalty, see § 505.99