4.2 Protection of Others & Property
Key Takeaways
- Protection of another person requires the reasonable beliefs specified by Delaware law about the danger and the intervention.
- Property-defense force has its own limits and ordinarily requires a request to stop the interference unless a statutory exception makes the request useless, dangerous, or harmful.
- Deadly force for property protection is exceptionally narrow and should never be inferred from the value of merchandise or an employer's demand.
- A guard must identify whether the objective is protecting a person or property because the legal rules are different.
Protection of another person
Delaware Code Title 11, Section 465 addresses force used to protect a third person. The actor must have the reasonable beliefs the statute requires about the circumstances, the person being protected, and the necessity of intervention. A guard cannot lawfully join a fight simply because one participant is an employee, friend, or client. First identify who is applying unlawful force, whether protection is immediately necessary, and whether intervention creates greater danger.
Practical options include calling 911, giving clear stop commands, directing uninvolved people away, creating a safe escape route, using barriers, and requesting trained backup. Hands-on force is one possible response only when justified by the actual threat. If both people disengage, the protective need changes. If facts are unclear, observation and separation may be safer than choosing a side based on appearance.
Protection of property is a different rule
Section 466 addresses force for protection of property in circumstances such as trespass, burglary, theft, or criminal mischief. The guard must reasonably believe the force is immediately necessary to prevent or terminate the unlawful interference. As a general statutory condition, the actor must first request the person to stop, unless the actor reasonably believes a request would be useless, would create substantial danger, or would allow substantial harm before it could be made effectively.
That request rule reflects a basic security principle: clear direction can end many property conflicts without physical force. State the boundary or rule—“This area is closed; leave through the marked exit”—and allow compliance when safety permits. Record the direction and response. A silent rush into physical contact can create needless risk and make the reason for action harder to defend.
Life outranks replaceable property
Deadly force for protection of property is governed by exceptionally narrow statutory conditions. Ordinary shoplifting, vandalism, trespass, or a fleeing person with merchandise does not become a deadly-force situation merely because the property is valuable. An employer cannot authorize what the law forbids. A guard should not fire a weapon, use a vehicle as a weapon, apply dangerous restraint, or create a lethal fall simply to prevent loss.
If a property incident also creates a threat to a person, analyze the threat to the person under the appropriate self-protection or protection-of-others rule. Do not use the property label to hide the real issue. For example:
| Situation | Primary analysis | Controlled response |
|---|---|---|
| Person spray-paints an exterior wall and begins leaving | Property interference | Observe, report, preserve video; do not create a deadly risk |
| Intruder advances on an employee with a knife | Protection of a person | Address the immediate unlawful-force threat; call 911 |
| Trespasser sits in a closed lobby and refuses to leave | Property control/trespass | Give a clear direction, notify supervision and police, contain safely |
| Shoplifter runs toward a busy roadway | Property recovery plus public danger | Do not chase in a way that compounds the danger; provide description and direction |
Agency and limits
A guard acts as the property possessor's agent only within assigned duties. Confirm that the owner or authorized manager actually wants access denied or permission withdrawn. Avoid resolving private ownership disputes, domestic disputes, landlord-tenant questions, or labor conflicts through force. When competing claims make authority uncertain, stabilize the location and request management or police assistance.
Post orders may impose stricter limits: no pursuit, no physical removal, no touching customer property, supervisor approval before contact, or mandatory police response. These limits are part of professional performance. A client demanding an unlawful shortcut does not protect the guard from personal, criminal, licensing, or civil consequences.
Response and documentation
After an event, identify what was being protected. State the observed unlawful interference, any request to desist, the person's response, why a request was not made if an exception was relied upon, the available alternatives, force used, point when force ended, injuries, aid, notifications, and evidence. Separate property value estimates from what you personally know.
Use the sequence identify—request—reassess—respond—report. Identify whether people or property face harm; request that property interference stop when the law and safety call for it; reassess the current need; respond within the correct legal rule; and report objective facts. The presence of property may explain a guard's attention, but it never makes punishment a legitimate objective.
A guard sees a person damaging a fence, and making a request to stop would not create danger or allow substantial harm. What does Delaware's property-defense rule generally require before force?
Why must a guard distinguish protection of a person from protection of property?
A shoplifter flees with ordinary merchandise and is not threatening anyone. Which principle should control?