Not just anyone who gets hurt on someone else's property qualifies as a trespasser. A customer who walks into the wrong doorway, a delivery driver using the front steps, or a guest who briefly goes beyond where they were invited may not automatically lose legal protection. A trespasser is someone who enters or stays on land or in a building without permission, legal right, or the owner's consent.

That label matters because it can sharply change what a property owner or occupier must do. In many situations, owners owe lawful visitors a duty of reasonable care to fix hazards, warn about dangers, or make the property safer. For trespassers, the duty is usually much narrower. In Massachusetts, the general rule is that a landowner usually must avoid willful, wanton, or reckless conduct toward a trespasser, rather than actively making the property safe for that person.

In an injury claim, the fight is often over status: was the injured person actually a trespasser, or did they have implied permission to be there? That question can affect whether a case survives at all, what evidence matters, and how premises liability is analyzed. On busy commercial properties, including commuter-heavy areas along Route 128, that distinction can be especially important when access points, parking areas, or restricted spaces are not clearly marked.