(a) In conducting its investigation, the arbitration committee may:
(1) Examine the buyer on his or her use of the seed of which he or she complains and the dealer or labeler on his or her packaging, labeling, and selling operation of the seed alleged to be faulty;
(2) Grow to production a representative sample of the alleged faulty seed through the facilities of the state, under the supervision of the Director of the State Plant Board, when such action is deemed by the committee to be necessary;
(3) Hold informal hearings at a time and place directed by the chairperson of the committee upon reasonable notice to the buyer and the dealer or labeler; and
(4) Seek evaluations from authorities in allied disciplines, when deemed necessary.
(b) An investigation made by less than the whole membership of the committee shall be by authority of a written directive by the chairperson, and the investigation shall be summarized in writing and considered by the committee in reporting its findings and making its recommendations.