Missouri Revised Statutes Title XVII. Agriculture and Animals § 261.099. Exclusive inspection of certain grounds and facilities, by whom--limitation of inspection--inapplicability, when--inadmissibility of evidence in criminal cases, when

(1) The production of eggs;

(2) The production of milk or other dairy products; or

(3) The raising of livestock or poultry.

3. (1) This section shall not apply to inspections performed in any municipality located in three or more counties, with one being a charter county, charter counties, except any county with a charter form of government and with more than three hundred thousand but fewer than four hundred fifty thousand inhabitants, or any city not within a county.

(2) This section shall not apply to inspections performed on any further processing component of any production agriculture farm.

(3) This section shall not apply to searches carried out under section 252.100.

(1) A representative of any agency or office set forth in subsection 1 of this section;

(2) Any person, individual, corporation or other association, governmental agency, or other entity specifically authorized by the owner of such grounds or facilities to be present at such grounds or facilities;

(3) Any person who entered such grounds or facilities pursuant to a valid search warrant issued by the court of competent jurisdiction; or

(4) Any person who has observed a condition or event at the grounds or facilities from public land or private land owned or rented by the person offering the testimony or evidence.