(1m) Whoever does any of the following is subject to a Class B forfeiture:
(a) Enters any enclosed, cultivated or undeveloped land of another, other than open land specified in par. (e) or (f), without the express or implied consent of the owner or occupant.
(am) Enters any land of another that is occupied by a structure used for agricultural purposes without the express or implied consent of the owner or occupant.
(b) Enters or remains on any land of another after having been notified by the owner or occupant not to enter or remain on the premises. This paragraph does not apply to a licensee or out-of-state licensee if the owner’s or occupant’s intent is to prevent the licensee or out-of-state licensee from carrying a firearm on the owner’s or occupant’s land.
(c)
1. While carrying a firearm, enters or remains at a residence that the actor does not own or occupy after the owner of the residence, if he or she has not leased it to another person, or the occupant of the residence has notified the actor not to enter or remain at the residence while carrying a firearm or with that type of firearm. In this subdivision, “residence,” with respect to a single-family residence, includes the residence building and the parcel of land upon which the residence building is located, and “residence,” with respect to a residence that is not a single-family residence, does not include any common area of the building in which the residence is located or any common areas of the rest of the parcel of land upon which the residence building is located.
1m. While carrying a firearm, enters or remains in a common area in a building, or on the grounds of a building, that is a residence that is not a single-family residence if the actor does not own the residence or does not occupy any part of the residence, if the owner of the residence has notified the actor not to enter or remain in the common area or on the grounds while carrying a firearm or with that type of firearm. This subdivision does not apply to a part of the grounds of the building if that part is used for parking and the firearm is in a vehicle driven or parked in that part.
2. While carrying a firearm, enters or remains in any part of a nonresidential building, grounds of a nonresidential building, or land that the actor does not own or occupy after the owner of the building, grounds, or land, if that part of the building, grounds, or land has not been leased to another person, or the occupant of that part of the building, grounds, or land has notified the actor not to enter or remain in that part of the building, grounds, or land while carrying a firearm or with that type of firearm. This subdivision does not apply to a part of a building, grounds, or land occupied by the state or by a local governmental unit, to a privately or publicly owned building on the grounds of a university or college, or to the grounds of or land owned or occupied by a university or college, or, if the firearm is in a vehicle driven or parked in the parking facility, to any part of a building, grounds, or land used as a parking facility.
3. While carrying a firearm, enters or remains at a special event if the organizers of the special event have notified the actor not to enter or remain at the special event while carrying a firearm or with that type of firearm. This subdivision does not apply, if the firearm is in a vehicle driven or parked in the parking facility, to any part of the special event grounds or building used as a parking facility.
4. While carrying a firearm, enters or remains in any part of a building that is owned, occupied, or controlled by the state or any local governmental unit, excluding any building or portion of a building under s. 175.60 (16) (a), if the state or local governmental unit has notified the actor not to enter or remain in the building while carrying a firearm or with that type of firearm. This subdivision does not apply to a person who leases residential or business premises in the building or, if the firearm is in a vehicle driven or parked in the parking facility, to any part of the building used as a parking facility.
5. While carrying a firearm, enters or remains in any privately or publicly owned building on the grounds of a university or college, if the university or college has notified the actor not to enter or remain in the building while carrying a firearm or with that type of firearm. This subdivision does not apply to a person who leases residential or business premises in the building or, if the firearm is in a vehicle driven or parked in the parking facility, to any part of the building used as a parking facility.
(e) Enters or remains on open land that is an inholding of another after having been notified by the owner or occupant not to enter or remain on the land.
(f) Enters undeveloped private land from an abutting parcel of land that is owned by the United States, this state or a local governmental unit, or remains on such land, after having been notified by the owner or occupant not to enter or remain on the land.