Mo. Rev. Stat. § 172.355
The university police officers, before they enter upon their duties, shall take and subscribe an oath of office before some officer authorized to administer oaths, to faithfully and impartially discharge the duties of their office, which oath shall be filed in the office of the board of curators of the University of Missouri, and the secretary of the board shall give each university police officer so appointed and qualified a certificate of appointment, under the seal of the board, which certificate shall empower him or her with the same authority to maintain order, preserve peace and make arrests as is now held by peace officers. The university police officer may in addition expel from the public buildings, campuses and grounds, persons violating the rules and regulations that may be prescribed by the board or others under the authority of the board. Such university police officers shall have satisfactorily completed before appointment a training course for police officers as prescribed by chapter 590 for state peace officers or shall otherwise comply with the requirements of chapter 590 for certification within the time periods specified in such section.
§ 172.355, RSMo