Trespass
Trespass, in law, most commonly an unlawful entry onto another person's property or an act that interferes with the use and enjoyment of the property. Entry is generally unlawful if it is made without the permission of the owner or occupant of the property; reasonable force may be used to eject a trespasser. Interference includes acts such as throwing a stone onto the property and shooting a weapon across it. Trespass is a tort, and the offender may be sued for damages, even though he caused no damage to the property.
Trespass may apply to personal property when it has been damaged or moved from one place to another. In modern interpretations, interference with the right of privacy, such as using a person's photograph for commercial purposes without his consent, is trespass. Traditionally, assault and battery and false imprisonment are considered trespasses against the person.