Mo. Rev. Stat. § 43.032: Federal immigration law enforcement, patrol members to be designated for training.

Subject to appropriation, the superintendent of the Missouri state highway patrol shall designate that some or all members of the highway patrol be trained in accordance with a memorandum of understanding between the state of Missouri and the United States Department of Homeland Security concerning the enforcement of federal immigration laws during the course of their normal duties in the state of Missouri, in accordance with 8 U.S.C. Section 1357(g). The superintendent shall have the authority to negotiate the terms of such memorandum. The memorandum shall be signed by the superintendent of the highway patrol, the governor, and the director of the department of public safety.