For the best information, please visit Illinois Self Defense Laws Illinois Criminal Code of 1961 - Article 7 Sec. 7-1. Use of force in defense of person.     (720 ILCS 5/7-1) (a) A person is justified in the use of force against another when and to the extent that he reasonably believes that such conduct is necessary to defend himself or another against such other's imminent use of unlawful force. However, he is justified in the use of force which is intended or likely to cause death or great bodily harm only if he reasonably believes that such force is necessary to prevent imminent death or great bodily harm to himself or another, or the commission of a forcible felony. (b) In no case shall any act involving the use of force justified under this Section give rise to any claim or liability brought by or on behalf of any person acting within the definition of "aggressor" set forth in Section 7-4 of this Article, or the estate, spouse, or other family member of such a person, against the person or estate of the person using such justified force, unless the use of force involves willful or wanton misconduct. (Source: P.A. 93-832, eff. 7-28-04.) Sec. 7-2. Use of force in defense of dwelling.     (720 ILCS 5/7-2) (a) A person is justified in the use of force against another when and to the extent that he reasonably believes that such conduct is necessary to prevent or terminate such other's unlawful entry into or attack upon a dwelling. However, he is justified in the use of force which is intended or likely to cause death or great bodily harm only if: (1) The entry is made or attempted in a violent, riotous, or tumultuous manner, and he reasonably believes that such force is necessary to prevent an assault upon, or offer of personal violence to, him or another then in the dwelling, or (2) He reasonably believes that such force is necessary to prevent the commission of a felony in the dwelling. (b) In no case shall any act involving the use of force justified under this Section give rise to any claim or liability brought by or on behalf of any person acting within the definition of "aggressor" set forth in Section 7-4 of this Article, or the estate, spouse, or other family member of such a person, against the person or estate of the person using such justified force, unless the use of force involves willful or wanton misconduct. (Source: P.A. 93-832, eff. 7-28-04.) Sec. 7-3. Use of force in defense of other property.     (720 ILCS 5/7-3) (a) A person is justified in the use of force against another when and to the extent that he reasonably believes that such conduct is necessary to prevent or terminate such other's trespass on or other tortious or criminal interference with either real property (other than a dwelling) or personal property, lawfully in his possession or in the possession of another who is a member of his immediate family or household or of a person whose property he has a legal duty to protect. However, he is justified in the use of force which is intended or likely to cause death or great bodily harm only if he reasonably believes that such force is necessary to prevent the commission of a forcible felony. (b) In no case shall any act involving the use of force justified under this Section give rise to any claim or liability brought by or on behalf of any person acting within the definition of "aggressor" set forth in Section 7-4 of this Article, or the estate, spouse, or other family member of such a person, against the person or estate of the person using such justified force, unless the use of force involves willful or wanton misconduct. (Source: P.A. 93-832, eff. 7-28-04.) Sec. 7-4. Use of force by aggressor.     (720 ILCS 5/7-4) The justification described in the preceding Sections of this Article is not available to a person who: (a) Is attempting to commit, committing, or escaping after the commission of, a forcible felony; or (b) Initially provokes the use of force against himself, with the intent to use such force as an excuse to inflict bodily harm upon the assailant; or (c) Otherwise initially provokes the use of force against himself, unless: (1) Such force is so great that he reasonably believes that he is in imminent danger of death or great bodily harm, and that he has exhausted every reasonable means to escape such danger other than the use of force which is likely to cause death or great bodily harm to the assailant; or (2) In good faith, he withdraws from physical contact with the assailant and indicates clearly to the assailant that he desires to withdraw and terminate the use of force, but the assailant continues or resumes the use of force. (Source: Laws 1961, p. 1983.)

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