(1) Any peace officer or animal control officer may impound an animal that is in violation of this code.

(2) The animal regulation authority shall impound an animal if the owner of the animal has not posted bail or paid a fine for a violation of this code imposed by the municipal judge. For any animal so seized the notice and disposition of the animal shall be in the same manner as for licensed dogs under the provisions of this code.

(3) Any person whose property has been trespassed upon by any dog in violation of this code or who observes a dog trespassing upon the property of another, or who observes a dog killing, chasing or injuring livestock, may immediately apprehend that dog and hold the dog until delivery to an animal control officer, or to any peace officer. Any person who so impounds a dog must immediately notify the animal regulation authority of such impoundment. No person who has impounded a dog under this subsection shall fail to notify the animal regulation authority immediately.

(4) If an animal control officer or a peace officer has probable cause to believe that a dog is a potentially dangerous dog level 1, 2, 3, or 4, then he/she may impound the dog. If the officer has probable cause to believe that the dog is a potentially dangerous dog level 5, then he/she shall impound the dog. The officer shall hold the dog until a hearing on the classification is held pursuant to section 4.440, or until the dog is to be redeemed or disposed of pursuant to sections 4.385 and 4.390 of this chapter.

(5) If an animal control officer or a peace officer has probable cause to believe that any animal which is in an unoccupied motor vehicle may be in danger of dying, then they may enter the motor vehicle and impound the animal and leave a notice in the vehicle where the animal may be reclaimed.

(6) If there is probable cause to believe that any animal is being subjected to treatment in violation of 4.335 to 4.350, a peace officer, after obtaining a search warrant in the manner authorized by law, may enter the premises where the animal is being held, provide food and water and impound such animal. If after reasonable search the owner or person having custody of such animal cannot be found and notified of the impoundment, such notice shall be conspicuously posted on such premises and within 72 hours after the impoundment such notice shall be sent by certified mail to the address, if any, at which the animal was impounded.