Mo. Rev. Stat. § 595.223
No prosecuting or circuit attorney, peace officer, governmental official, or employee of a law enforcement agency shall request or require a victim of an offense under chapter 566, or a victim of an offense of domestic assault or stalking to submit to any polygraph test or psychological stress evaluator exam as a condition for proceeding with a criminal investigation of such offense.
(L. 2007 H.B. 583, A.L. 2013 H.B. 215, A.L. 2014 S.B. 491)
Transferred 2014; formerly 566.224; Effective 1-01-17