Effective 01 Jan 2017, see footnote

455.085. Arrest for violation of order — penalties — good faith immunity for law enforcement officials. — 1. When a law enforcement officer has probable cause to believe a party has committed a violation of law amounting to domestic violence, as defined in section 455.010, against a family or household member, the officer may arrest the offending party whether or not the violation occurred in the presence of the arresting officer. When the officer declines to make arrest pursuant to this subsection, the officer shall make a written report of the incident completely describing the offending party, giving the victim's name, time, address, reason why no arrest was made and any other pertinent information. Any law enforcement officer subsequently called to the same address within a twelve-hour period, who shall find probable cause to believe the same offender has again committed a violation as stated in this subsection against the same or any other family or household member, shall arrest the offending party for this subsequent offense. The primary report of nonarrest in the preceding twelve-hour period may be considered as evidence of the defendant's intent in the violation for which arrest occurred. The refusal of the victim to sign an official complaint against the violator shall not prevent an arrest under this subsection.

2. When a law enforcement officer has probable cause to believe that a party, against whom a protective order has been entered and who has notice of such order entered, has committed an act of abuse in violation of such order, the officer shall arrest the offending party-respondent whether or not the violation occurred in the presence of the arresting officer. Refusal of the victim to sign an official complaint against the violator shall not prevent an arrest under this subsection.

3. When an officer makes an arrest, the officer is not required to arrest two parties involved in an assault when both parties claim to have been assaulted. The arresting officer shall attempt to identify and shall arrest the party the officer believes is the primary physical aggressor. The term "primary physical aggressor" is defined as the most significant, rather than the first, aggressor. The law enforcement officer shall consider any or all of the following in determining the primary physical aggressor:

(1) The intent of the law to protect victims from continuing domestic violence;

(2) The comparative extent of injuries inflicted or serious threats creating fear of physical injury;

(3) The history of domestic violence between the persons involved.

­­No law enforcement officer investigating an incident of domestic violence shall threaten the arrest of all parties for the purpose of discouraging requests or law enforcement intervention by any party. Where complaints are received from two or more opposing parties, the officer shall evaluate each complaint separately to determine whether the officer should seek a warrant for an arrest.

4. In an arrest in which a law enforcement officer acted in good faith reliance on this section, the arresting and assisting law enforcement officers and their employing entities and superiors shall be immune from liability in any civil action alleging false arrest, false imprisonment or malicious prosecution.

5. When a person against whom an order of protection has been entered fails to surrender custody of minor children to the person to whom custody was awarded in an order of protection, the law enforcement officer shall arrest the respondent, and shall turn the minor children over to the care and custody of the party to whom such care and custody was awarded.

6. The same procedures, including those designed to protect constitutional rights, shall be applied to the respondent as those applied to any individual detained in police custody.

7. A violation of the terms and conditions, with regard to domestic violence, stalking, sexual assault, child custody, communication initiated by the respondent or entrance upon the premises of the petitioner's dwelling unit or place of employment or school, or being within a certain distance of the petitioner or a child of the petitioner, of an ex parte order of protection of which the respondent has notice, shall be a class A misdemeanor unless the respondent has previously pleaded guilty to or has been found guilty in any division of the circuit court of violating an ex parte order of protection or a full order of protection within five years of the date of the subsequent violation, in which case the subsequent violation shall be a class E felony. Evidence of prior pleas of guilty or findings of guilt shall be heard by the court out of the presence of the jury prior to submission of the case to the jury. If the court finds the existence of such prior pleas of guilty or finding of guilt beyond a reasonable doubt, the court shall decide the extent or duration of sentence or other disposition and shall not instruct the jury as to the range of punishment or allow the jury to assess and declare the punishment as a part of its verdict.

8. A violation of the terms and conditions, with regard to domestic violence, stalking, sexual assault, child custody, communication initiated by the respondent or entrance upon the premises of the petitioner's dwelling unit or place of employment or school, or being within a certain distance of the petitioner or a child of the petitioner, of a full order of protection shall be a class A misdemeanor, unless the respondent has previously pleaded guilty to or has been found guilty in any division of the circuit court of violating an ex parte order of protection or a full order of protection within five years of the date of the subsequent violation, in which case the subsequent violation shall be a class E felony. Evidence of prior pleas of guilty or findings of guilt shall be heard by the court out of the presence of the jury prior to submission of the case to the jury. If the court finds the existence of such prior plea of guilty or finding of guilt beyond a reasonable doubt, the court shall decide the extent or duration of the sentence or other disposition and shall not instruct the jury as to the range of punishment or allow the jury to assess and declare the punishment as a part of its verdict. For the purposes of this subsection, in addition to the notice provided by actual service of the order, a party is deemed to have notice of an order of protection if the law enforcement officer responding to a call of a reported incident of domestic violence, stalking, sexual assault, or violation of an order of protection presented a copy of the order of protection to the respondent.

9. Good faith attempts to effect a reconciliation of a marriage shall not be deemed tampering with a witness or victim tampering under section 575.270.

10. Nothing in this section shall be interpreted as creating a private cause of action for damages to enforce the provisions set forth herein.

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(L. 1980 S.B. 524 § 16, A.L. 1986 S.B. 450, A.L. 1989 S.B. 420, A.L. 1993 H.B. 476 & 194, A.L. 2000 H.B. 1677, et al., A.L. 2011 S.B. 320, A.L. 2013 H.B. 215, A.L. 2014 S.B. 491, A.L. 2015 S.B. 321 merged with S.B. 341)

Effective 1-01-17

(1982) Adult Abuse Act does not violate constitutional requirement that legislative bills contain only one subject which shall be clearly expressed in the title; provisions relating to ex parte orders of protection excluding certain persons from home to prevent further abuse do not violate due process; and provisions permitting trial court to include certain provisions in ex parte or full order of protection, violation of which were misdemeanors, did not violate constitutional requirements of separation and nondelegation of power. State ex rel. Williams v. Marsh (Mo.), 626 S.W.2d 223.

(1996) "Lingering outside" is not unconstitutionally vague. State v. Schleiermacher, 924 S.W.2d 269 (Mo.banc).