Missouri Revised Statutes

Mo. Rev. Stat. § 575.270 (2026)

Tampering with a witness or victim

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  575.270.  Tampering with a witness or victim — penalties. — 1.  A person commits the offense of tampering with a witness or victim if:

  (1)  With the purpose to induce a witness or a prospective witness to disobey a subpoena or other legal process, absent himself or herself, avoid subpoena or other legal process, withhold evidence, information, or documents, or testify falsely, he or she:

  (a)  Threatens or causes harm to any person or property; or

  (b)  Uses force, threats or deception; or

  (c)  Offers, confers or agrees to confer any benefit, direct or indirect, upon such witness; or

  (d)  Conveys any of the foregoing to another in furtherance of a conspiracy; or

  (2)  He or she purposely prevents or dissuades or attempts to prevent or dissuade any person who has been a victim of any crime or a person who is acting on behalf of any such victim from:

  (a)  Making any report of such victimization to any peace officer, state, local or federal law enforcement officer, prosecuting agency, or judge;

  (b)  Causing a complaint, indictment or information to be sought and prosecuted or assisting in the prosecution thereof;

  (c)  Arresting or causing or seeking the arrest of any person in connection with such victimization.

  2.  The offense of tampering with a witness or victim is a class A misdemeanor, unless the original charge is a felony, in which case tampering with a witness or victim is a class D felony.  Persons convicted under this section shall not be eligible for parole.

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(L. 1977 S.B. 60, A.L. 1983 S.B. 24, A.L. 2005 H.B. 353, A.L. 2014 S.B. 491)

Effective 1-01-17

CROSS REFERENCES:

Court order against witness or victim tampering, 491.600; violations, 491.610

Pretrial release of defendant conditioned on no tampering, forms for bail or bond to set out also forfeiture of bond, 491.620

Notes of Decisions
Cited in 75 cases (10 in the last 5 years), 1982–2025 · leading case: State of Missouri v. Timothy F. Plopper, 489 S.W.3d 848 (Mo. Ct. App. 2016).
State of Missouri v. Timothy F. Plopper, 489 S.W.3d 848 (Mo. Ct. App. 2016). · cites it 6× “Plopper (“Defendant”) guilty of tampering with a witness, see section 575.270, and tampering in the first' degree, see section 569.”
State v. Peeples, 288 S.W.3d 767 (Mo. Ct. App. 2009). · cites it 4× “The Court specifically recognized Section 575.270 as one of these examples.”
State v. McGirk, 999 S.W.2d 298 (Mo. Ct. App. 1999). · cites it 8× “Appellant argues that, under section 575.270, the witness tampering statute, the State is required to prove that a judicial proceeding was pending at the time of the tampering offense and that, therefore, the same is required under section 565.”
State of Missouri v. Scott William Eckert, 491 S.W.3d 228 (Mo. Ct. App. 2016). · cites it 6× “Eckert appeals his convictions under section 575.270 2 for three class C felony victim-tampering counts, for each of which he was sentenced to seven consecutive years of imprisonment.”
State v. Anding, 689 S.W.2d 745 (Mo. Ct. App. 1985). · cites it 7× “The defendant Anding, an attorney, was convicted by a jury of tampering with a witness in violation of § 575.270, RSMo 1978, and was sentenced to a term of three years.”
State v. Owens, 270 S.W.3d 533 (Mo. Ct. App. 2008). · cites it 4× “The relevant paragraph of the First Amended Information, filed on the day Owens’ trial commenced, alleges that: In violation of Section 575.270, RSMo, [Owens] committed the class C felony of victim tampering, punishable upon conviction under Sections 558.”
Marmaduke v. CBL & Assocs. Mgmt., Inc., 521 S.W.3d 257 (Mo. Ct. App. 2017). · cites it 2× “§ 575.270 RSMo (2017) (setting forth the elements of tampering with a witness or a victim) with § 575.”
State v. Dentman, 635 S.W.2d 28 (Mo. Ct. App. 1982). · cites it 9× “Dentman was convicted of the class D felony of tampering with a witness in a felony prosecution, § 575.270, RSMo 1978, and sentenced to imprisonment for a term of five years.”
State v. Atterberry, 659 S.W.2d 339 (Mo. Ct. App. 1983). · cites it 6× “PER CURIAM: A Stone County jury declared defendant guilty of the class D felony of tampering with a witness as denounced by § 575.270 1 He was sentenced to imprisonment for a term of two years [§ 558.”
State v. Hornbeck, 702 S.W.2d 90 (Mo. Ct. App. 1986). · cites it 4× “§ 575.270 RSMo (Supp.1984). He was sentenced as a prior and persistent offender to five years' imprisonment.”
State v. Blakeburn, 859 S.W.2d 170 (Mo. Ct. App. 1993). · cites it 3× “Appellant, Roger Blakeburn, appeals his conviction in the Circuit Court of Adair County, Missouri, of the Class A misdemeanor of tampering with a witness in violation of section 575.270, RSMo 1986. 1 The facts leading up to this appeal are as follows: Blakeburn had been charged…”
Patterson v. State, 92 S.W.3d 212 (Mo. Ct. App. 2002). · cites it 3× “030, RSMo 2000; and one count of tampering with a victim, § 575.270, RSMo 2000. 1 His motion was denied without an evidentiary hearing.”
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