(3) With the consent of the property owner and the livestock owner, the director or the director's designee may enter at all reasonable times any premises, facility, pen, yard, vehicle, or means of conveyance for the purpose of sampling and testing livestock registered or entered in an exhibition or raised with the apparent intent of being so registered or entered. If the director or the director's designee is denied access to any premises, facility, pen, yard, vehicle, or means of conveyance by the property owner or to livestock by the livestock owner, and if the director reasonably suspects that food safety or the health, safety, or welfare of livestock is threatened, the director may apply to a court of competent jurisdiction in the county in which the premises, facility, pen, yard, vehicle, means of conveyance, or livestock are located for a search warrant authorizing access to the premises, facility, pen, yard, vehicle, means of conveyance, or livestock for the purposes of this section. The court shall issue the search warrant for the purposes requested if there is probable cause to believe that livestock is involved that is registered or entered in an exhibition or raised with the apparent intent of being so registered or entered, and that food safety or the health, safety, or welfare of livestock is threatened. The finding of probable cause may be based on hearsay, provided there is a substantial basis for believing that the source of the hearsay is credible and that there is a factual basis for the information furnished. The director may designate employees of the department of agriculture, employees of the United States department of agriculture, licensed veterinarians, or employees or students of an approved or accredited veterinary school or college to perform the inspecting, sampling, and testing. The director may contract with laboratories, universities, or other persons or institutions, both public and private, to perform the livestock testing.