Torts
Trespass
Definition
Trespass to land is an intentional tort involving the unauthorized physical entry onto or remaining on another person's real property. The defendant need only intend the act of entering — not intend to trespass — making mistake as to ownership no defense. Trespass protects the possessory interest in land and is actionable without proof of damages. It can also occur through causing a physical object to enter the land or by staying beyond the scope of permission granted.
Example
A delivery company drives across a neighbor's field despite being told not to. Even if no damage is done to the field, the company has committed a trespass.