Trespass Defense Lawyer in Wisconsin

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What the Law Says About Trespass in Wisconsin

Wisconsin’s trespass laws cover a wide range of situations – from entering private land without consent to entering dwellings, medical facilities, utility property, or construction sites. Depending on the location and the surrounding circumstances, trespass may be charged as a forfeiture, a Class A misdemeanor, or even a Class H felony. Each statute has its own definitions, entry requirements, and consent rules, and outcomes often turn on the specific facts of how the alleged entry occurred.

Trespass charges typically arise in disputes involving property boundaries, landlord–tenant issues, domestic disagreements, protests, firearms restrictions, or misunderstandings about a person’s right to be on certain land. Understanding which trespass statute applies is critical to identifying the best defense strategy.

At Chirafisi Anderson, S.C. we defend individuals accused of violating property crimes such as trespass across Southern and Central Wisconsin.

Trespass to Land – §943.13

Wis. Stat. §943.13 applies to entering or remaining on another person’s land without consent. Many violations under this section are Class B forfeitures, but some firearm-related subsections carry enhanced consequences. The statute is extremely detailed and includes definitions for “open land,” “inholdings,” notice requirements, and posted land.

What the State Must Prove to Convict on Trespass to Land

To obtain a conviction under §943.13(1m), the State must show:

  • The defendant entered or remained on land belonging to another person.
  • The entry was without express or implied consent of the owner or occupant.
  • In certain subsections, the State must also prove proper notice, such as posted land or verbal/written notice not to enter.
  • For firearm-related subsections, the State must prove the defendant was carrying a firearm while entering or remaining on restricted property.

Because many locations require specific signage or notice, defenses frequently arise from improper posting, implied consent, or disputes about whether the defendant was ever notified.

Criminal Trespass to a Dwelling – §943.14

Criminal trespass to a dwelling is a Class A misdemeanor and treated more seriously than land trespass because it involves a person’s home. A “dwelling” includes any structure used or intended as a residence, even if not currently occupied.

What the State Must Prove to Convict on Criminal Trespass to Dwelling

To prove a violation of §943.14, the State must establish:

  1. The defendant intentionally entered or remained in the dwelling of another.
  2. The entry was without consent of someone lawfully on the premises (or, if no one was present, without consent of the owner).
  3. The entry occurred under circumstances tending to create or provoke a breach of the peace.
  4. The defendant knew the entry was without consent and knew the circumstances tended to create or provoke a breach of the peace.

These elements are detailed in Wisconsin Jury Instruction – Criminal 1437 Criminal Trespass to a Dwellings

Criminal Trespass to Energy Provider Property – §943.143

This statute makes it a Class H felony to intentionally enter property owned, leased, or operated by an energy provider—such as power plants, substations, gas pipelines, transmission facilities, or decommissioned nuclear sites—without consent.

What the State Must Prove to Convict on Criminal Trespass to Energy Provider Property

  • The property qualifies as energy provider property under the statute.
  • The defendant intentionally entered it.
  • The entry was without lawful authority and without consent of the energy provider.

This statute includes exceptions for union activity, labor disputes, lawful demonstrations, and certain safety compliance functions.

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Criminal Trespass to a Medical Facility – §943.145

Entering a hospital, clinic, or physician’s office without consent, under circumstances tending to create or provoke a breach of the peace, is a Class B misdemeanor.

What the State Must Prove to Convict on Criminal Trespass to a Medical Facility

  • The defendant intentionally entered a medical facility.
  • The entry was without consent of someone lawfully upon the premises.
  • The entry occurred under circumstances tending to create or provoke a breach of the peace.

Entry Onto a Construction Site – §943.15

Entering a locked or posted construction site—or a locked/enclosed building, dwelling, or room—without consent is a Class A misdemeanor.

What the State Must Prove to Convict on Entry Onto a Construction Site

  • The location was either a locked or posted construction site, or a locked and enclosed building/dwelling/room.
  • The defendant entered without consent of the owner or person in lawful possession.

Penalties and Sentencing for Trespass in Wisconsin

Trespass penalties depend on the type of property and who owns or operates that property.

Trespass Type

Statute

Classification

Trespass to Land

§943.13

Class B forfeiture (some firearm subsections carry higher penalties)

Trespass to Dwelling

§943.14

Class A misdemeanor

Trespass to Medical Facility

§943.145

Class B misdemeanor

Entry Onto Construction Site

§943.15

Class A misdemeanor

Trespass to Energy Provider Property

§943.143

Class H felony

Defending Trespass Charges in Wisconsin

Common defense strategies include:

  • Implied consent from past interactions or customary use
  • Improper or missing posting of land
  • Mistake of fact, including boundary misunderstandings
  • Lack of intent or knowledge
  • No breach-of-the-peace circumstances for dwellings or medical facilities
  • Constitutionally protected activity, including lawful protest or labor activity

View some of the results the attorneys at Chirafisi Anderson, S.C. have obtained in criminal cases across Southern and Central Wisconsin: Criminal Defense Case Results


Why Hiring a Trespass Defense Lawyer Matters

Trespass charges often turn on fine details: property boundaries, signage, consent, notice requirements, whether a structure qualifies as a dwelling, and the defendant’s intent. A conviction can carry fines, probation, and jail time—and in felony trespass cases, potential prison exposure. Facing a trespass allegation is stressful, especially when it arises from misunderstanding, misinformation, or a personal dispute. The attorneys at Chirafisi Anderson, S.C. have the experience and proven results to protect your rights, challenge the State’s evidence, and pursue the most favorable outcome.

  • Local Experience Matters. We regularly defend criminal cases across Southern and Central Wisconsin including in Dane, Rock, Iowa, Green, Columbia, Dodge, Jefferson, and Sauk Counties, understanding local charging practices and diversion criteria.
  • Proven Track Record of Results. Our attorneys have secured dismissals, charge reductions, and negotiated outcomes that avoid criminal convictions.
  • Recognized Legal Excellence. Chirafisi Anderson’s attorneys are consistently recognized by Super Lawyers® and are active in WACDL and NACDL, reflecting respected trial advocacy and client-focused representation.

Contact Chirafisi Anderson, S.C.

If you are facing any type of trespass charge seek the counsel of an experienced defense attorney. Contact Chirafisi Anderson, S.C. for a free consultation with an experienced defense attorney.

Frequently asked questions – Trespass in Wisconsin

Yes. Many §943.13 cases hinge on whether posting met statutory requirements. If signage was missing, incorrectly placed, or ambiguous, the State may be unable to prove notice.

No. The State must also prove circumstances tending to create or provoke a breach of the peace and that you acted intentionally and without consent.

Trespass requires lack of consent and, in many cases, proof that you knew you lacked consent. Good-faith misunderstandings can be powerful defenses.

Yes. Wisconsin has extensive firearm-related provisions in §943.13(1m)(c). The State must prove proper notice not to enter while carrying a firearm.

Only under §943.143 (energy provider property). All other trespass statutes are misdemeanors or forfeitures.