133.08: UNLAWFUL INTRUSION UPON LAND:
It is unlawful for any person to intrude or squat upon any lot or piece of land without consent from the owner thereof, or to erect or to occupy thereon any hut, hovel, shanty or other structure without consent from the owner thereof, or to refuse to leave the property when requested to do so by the owner thereof or by law enforcement personnel. (2001 Code § 133.08)