Mo. Rev. Stat. § 411.110: Weighmasters — powers and duties.

When requested, it shall be the duty of grain weighmasters appointed by the director, under the provisions of this chapter, to weigh or to supervise the actual weighing and certification of weights of all grain as provided for in this chapter, and the certificate of weight issued or caused to be issued by such weighmasters in the discharge of their duties shall be the basis of settlement between the buyer and seller. Such weighmasters shall have the entire control, subject to the supervision of the director, of the scales under their supervision.