720 ILCS 5/7-2:
Castle Doctrine and Defense of Dwelling

Section 7-2 of the Illinois Criminal Code governs force in defense of a dwelling, while instruction 24-25.09X states that a person who has not initially provoked the use of force against themselves has no duty to attempt to escape the danger before using force against the aggressor. This statute authorizes the use of force, including deadly force under certain circumstances, to prevent or terminate unlawful entry into or an attack upon a dwelling.^[1]

General Rule: Force in Defense of Dwelling

Under 720 ILCS 5/7-2(a), a person is justified in the use of force against another when and to the extent that the person reasonably believes such conduct is necessary to prevent or terminate the other person's unlawful entry into or attack upon a dwelling.^[1] The term "dwelling" under Illinois law encompasses a building or portion thereof, a tent, a vehicle, or other enclosed space that is used or intended for use as a human habitation, home, or residence.

The key elements parallel the general self-defense statute (Section 7-1) but are focused specifically on protecting the home:

• The person using force must have a reasonable belief that the force is necessary
• The other person's entry or attack must be unlawful
• The force must be directed at preventing or terminating the unlawful entry or attack

Deadly Force in Defense of Dwelling

Section 7-2(a) authorizes deadly force in defense of a dwelling in two situations. First, deadly force is justified when the entry is made or attempted in a violent, riotous, or tumultuous manner and the person reasonably believes the force is necessary to prevent an assault upon, or offer of personal violence to, themselves or another person in the dwelling. Second, deadly force is justified when the person reasonably believes the force is necessary to prevent the commission of a felony in the dwelling. The second prong covers any felony, not only forcible felonies.^[1]

This means that deadly force may be justified in home defense scenarios such as:

• An intruder breaking into an occupied home in a violent, riotous, or tumultuous manner, where the occupant reasonably believes force is necessary to prevent an assault on someone inside
• A person the occupant reasonably believes is about to commit a felony inside the dwelling, such as burglary, robbery, arson, kidnapping, or criminal sexual assault, when the occupant reasonably believes deadly force is necessary to prevent the felony

No Duty to Retreat in the Home

Under Illinois Pattern Jury Instruction 24-25.09X, a person who has not initially provoked the use of force against themselves has no duty to attempt to escape the danger before using force against the aggressor. The instruction does not limit that rule to a dwelling. An occupant who has not initially provoked the use of force against themselves has no duty to attempt to escape the danger before using force against the aggressor, and force in defense of a dwelling must meet Section 7-2, including its additional conditions for deadly force.^[2]

Scope of "Dwelling"

Section 2-6(a) defines a dwelling by its use or intended use as a human habitation, home, or residence. The following spaces may qualify when they meet that definition.

• Apartments and condominiums
• Mobile homes and trailers used as residences
• Hotel and motel rooms during occupancy
• Whether an attached garage, porch, or enclosed area qualifies depends on whether it is a building or portion thereof, or another enclosed space, used or intended for use as a human habitation, home, or residence

A vehicle qualifies as a dwelling only when it is used or intended for use as a human habitation, such as a camper or motor home (720 ILCS 5/2-6(a)). A passenger vehicle qualifies as a dwelling only if it is used or intended for use as a human habitation, home, or residence.^[1]

Limitations

The Castle Doctrine does not authorize unrestricted force against anyone who enters a dwelling. The entry or attack must be unlawful. A person cannot use force against a co-occupant who has a legal right to be in the dwelling (such as a spouse or family member) solely because of an unwanted presence. Additionally, the reasonable belief standard still applies. A person cannot use deadly force based on an unreasonable or negligent belief about the nature of the threat.^[1]

Relationship to Section 7-1

Section 7-2 operates alongside Section 7-1 (use of force in defense of person). When a home invasion involves both an unlawful entry and a personal threat to the occupant, both statutes may apply simultaneously. Defense of dwelling and defense of person are affirmative defenses based on Article 7. When defense of dwelling or defense of person is raised by the State's evidence or some evidence presented by the defendant, the State must prove the defendant guilty beyond a reasonable doubt as to that issue together with all the other elements of the offense.^[3]

See also: 720 ILCS 5/7-3: Defense of Other Property