The commissioner may investigate, examine or inspect any transaction or happening which may involve a violation or alleged violation of this act or any rule and regulation or order lawfully issued and promulgated by the commissioner thereunder. In the furtherance of any such examination, investigation or inspection, the commissioner may examine that part of the ledgers, books, accounts, memoranda or other documents, scales, measures, livestock and other articles and things used in connection with the business of such person relating to the transactions involved.

The commissioner shall hear the parties in accordance with the provisions of the Kansas administrative procedure act, to such complaint and after the conclusion of any hearing, the commissioner shall enter in the office of the commissioner at Topeka a decision, either dismissing such complaint or specifying the facts established on such hearing, and give notice thereof to the interested parties. If the commissioner determines from the facts specified that the licensee has violated any provisions of this act, the commissioner shall, unless the offender has already made reparation to the person offended, suspend or revoke the license of the licensee.