Any authorized person, upon receiving notice that any animal or fowl has bitten any person or has acted in such manner as to indicate that it has rabies or other similar dangerous disease, is authorized to detain such animal or fowl after its identification by the victim or a witness, and the animal or fowl shall be held under observation and for examination by a veterinarian for a period of not less than ten days. The owner or custodian of such animal or fowl will be required to produce proof of rabies immunization. If no owner is located, the city will hold the animal or fowl for ten days, and if the animal is not redeemed by the owner or custodian, it may be sold or destroyed as otherwise provided in this chapter. The owner or custodian of the animal or fowl shall be liable for all medical costs incurred by any person as a result of such animal’s behavior, and shall also pay all veterinarian’s fees and costs of impoundment and care as provided in this chapter before such animal may be redeemed.