Mo. Rev. Stat. § 558.016
1. The court may sentence a person who has been found guilty of an offense to a term of imprisonment as authorized by section 558.011 or to a term of imprisonment authorized by a statute governing the offense if it finds the defendant is a prior offender or a persistent misdemeanor offender. The court may sentence a person to an extended term of imprisonment if:
4. A "dangerous offender" is one who:
(L. 1977 S.B. 60, A.L. 1980 H.B. 1138, et al., A.L. 1981 H.B. 554, A.L. 1990 H.B. 974, A.L. 2003 S.B. 5, A.L. 2005 H.B. 353, A.L. 2014 S.B. 491)
Effective 1-01-17
(1986) Evidence of prior conviction may include admission of such conviction under direct examination or cross examination, or a memorandum of such conviction from the court division file. State v. Hughes, 713 S.W.2d 11 (Mo.App.E.D.).
(1991) Statute does not contain a time limitation and must be interpreted according to its plain and ordinary meaning, therefore conviction that was more than twenty-five years old could be used in sentencing defendant as persistent offender. State v. Lucas, 809 S.W.2d 54 (Mo.App.E.D.).
(1991) Where defendant was convicted of intoxication-related traffic offenses in violation of laws of other states, such convictions may be used for enhancement purposes as persistent offender. Phrase "in violation of state law" bars use of municipal ordinance convictions for enhancement. State v. Ryan, 813 S.W.2d 898 (Mo.App.S.D.).
(1997) Defendant could not be sentenced as prior and persistent offender where information charged defendant only as prior offender with no evidence to support finding that defendant was persistent offender. State v. Halk, 955 S.W.2d 216 (Mo.App.E.D.).