A person commits the offense of criminal trespass or criminal trespassing by entering or remaining on the property of another—including residential land, agricultural land, recreational land (such as a vehicle park), a building, an aircraft, or an automobile—without consent and if the person (1) had notice that the entry was forbidden, or (2) received notice to depart, but failed to do so.

The definitions and penalties for criminal trespassing vary from state to state and are usually located in a state’s penal or criminal code (statutes).

In Wyoming, criminal trespass is defined under Wyoming Statutes Title 6, Crimes and Offenses; specifically, W.S. 6-3-303. A person is guilty of criminal trespass if they enter or remain on the property of another without authorization and if they either knew that their entry was forbidden or were asked to leave but failed to do so. This includes various types of property such as residential, agricultural, recreational, as well as vehicles and buildings. The penalties for criminal trespass in Wyoming can range from a simple misdemeanor to a felony, depending on the circumstances of the trespass, such as the type of property involved or if the trespasser intended to commit a felony. Enhanced penalties may apply if the trespass occurs on agricultural land with the intent to collect resource data without the landowner's consent. It is important for individuals to respect property boundaries and to leave when asked by the property owner or representative to avoid criminal charges.