A vicious dog is one that has, without being provoked, bitten or attempted to bite a human being, chased, bitten, injured or killed any other domestic animal or livestock. If your dog is found to be a vicious dog, your county can restrain, kill, or quarantine your dog whether it is licensed or unlicensed.
If your dog, that has previously been found to be a vicious dog, bites another person, domesticated animal or livestock without being provoked, you, as the owner, may face misdemeanor criminal charges and even felony charges if your vicious dog causes severe injury or death to another human being. Also, your dog can be detained by animal control and possibly even killed.