.A.M.S. 563.041
Vernon's Annotated Missouri Statutes Currentness
Title XXXVIII. Crimes and Punishment; Peace Officers and Public Defenders
+ Chapter 563. Defense of Justification
>>563.041. Use of physical force in defense of property
1. A person may, subject to the limitations of subsection 2, use physical force upon another person when and to the extent that he or she reasonably believes it necessary to prevent what he or she reasonably believes to be the commission or attempted commission by such person of stealing, property damage or tampering in any degree.
You may use non-deadly force in defense of property provided you meet the requirements of subsection 1.
2. A person may use deadly force under circumstances described in subsection 1 only when such use of deadly force is authorized under other sections of this chapter.
You can only use deadly force to protect property when that deadly force is already authorized under a DIFFERENT section of Missouri's law. The intent of this subsection could not be clearer because the drafters state the intent in their comment below. They state that the intent is to completely remove defense of property alone as a justification for the use of deadly force. In order to use deadly force you've got to look at a DIFFERENT section of that chapter for justification, and all of the other sections that authorize deadly force do it to protect the person, not the property.
3. The justification afforded by this section extends to the use of physical restraint as protective force provided that the actor takes all reasonable measures to terminate the restraint as soon as it is reasonable to do so.
4. The defendant shall have the burden of injecting the issue of justification under this section.
HISTORICAL AND STATUTORY NOTES
(L.1977, S.B. No. 60, p. 662, § 1, eff. Jan. 1, 1979. Amended by L.2007, S.B. Nos. 62 & 41, § A, in subsec. 1, in two places, inserted "or she" following "he".
This means that the statute was created by senate bill #60 and passed in 1979. It was later amended by senate bills 62 and 41, thanks to Jack Goodman, and the amendment consisted of inserting, "or she." If you look up these bills you can confirm this. Yes these bills did a heck of a lot more than just this small change, but to other sections of Missouri's Code that have absolutely nothing to do with this discussion
COMMENT TO 1973 PROPOSED CODE
1999 Main Volume
Based on New York Revised Penal Law § 35.25; Michigan Proposed Criminal Code § 625 (Final Draft 1967).
Much of the comment on § 563.036 applies to this section also. The scope of this section is limited to the use of physical force by a person to prevent stealing, property damage or tampering. Under subsection 1 he may use such force (but not deadly force) as he reasonably believes necessary to prevent a person from stealing his bicycle, or from damaging his automobile with an axe. Subsection 2 reiterates the common law principle that the amount of force used must bear a reasonable relation to the magnitude of the harm sought to be avoided. Thus, deadly force cannot justifiably be used merely to protect property. Of course, if while protecting one's property the circumstances are such that deadly force is justified under some other provision, then one can use deadly force.
Section 563.041 has gone unchanged since its exception, except to make that small clerical correction noted above. This is the intent of the law as written by its drafters, and no drafter since has changed it through a subsequent amendment. It doesn't get any clearer than this. If you want to use deadly force as self defense in Missouri, you better find your justification under another section because you can't use 563.041.
You can use section 563.031 for justification to use deadly force, and after the bills passed this year you no longer have to retreat before doing so. All thanks to your buddy Jack Goodman. But this law has nothing to do with defending one's property. You are all gung ho about the wrong statute.