569.140. 1. A person commits the crime of trespass in the first degree if he knowingly enters unlawfully or knowingly remains unlawfully in a building or inhabitable structure or upon real property.
2. A person does not commit the crime of trespass in the first degree by entering or remaining upon real property unless the real property is fenced or otherwise enclosed in a manner designed to exclude intruders or as to which notice against trespass is given by:
(1) Actual communication to the actor; or
(2) Posting in a manner reasonably likely to come to the attention of intruders.
3. Trespass in the first degree is a class B misdemeanor.
(L. 1977 S.B. 60)
Streams and rivers, no civil liability for adjoining landowners, when, 258.200
(1984) Differentiates "burglary in the second degree" from trespass in the first degree. (Mo.App.) State v. Butler, 665 S.W.2d 41.
Missouri General Assembly