Code of Alabama

Ala. Code § 13A-3-1 (2026)

Mental Disease or Defect.

✓ official Alabama Legislature (ALISON) text, current July 2026
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(a) It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of severe mental disease or defect, was unable to appreciate the nature and quality or wrongfulness of his acts. Mental disease or defect does not otherwise constitute a defense.

(b) “Severe mental disease or defect” does not include an abnormality manifested only by repeated criminal or otherwise antisocial conduct.

(c) The defendant has the burden of proving the defense of insanity by clear and convincing evidence.

(Acts 1977, No. 607, p. 812, §501; Acts 1988, No. 88-654, p. 1051, §2.)

Notes of Decisions
Cited in 58 cases, 1982–2020 · leading case: Williams v. State.
Williams v. State (Ala. Crim. App. 1996). · cites it 19× “88-654, now codified at Ala.Code § 13A-3-1 (Supp. 1990). Subsection (a) of that statute provides that: "`It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
Knight v. State (Ala. Crim. App. 2005). · cites it 12× “88-654, now codified at Ala.Code § 13A-3-1 (Supp.1990). Subsection (a) of that statute provides that: "`"It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
Williams v. Allen (11th Cir. 2010). · cites it 5× “2004) (explaining that Ala.Code § 13A-3-1, provides that insanity is an "affirmative defense which the defendant must prove by clear and convincing evidence”).”
Albarran v. State (Ala. Crim. App. 2011). · cites it 4× “Code 1975, specifically provides: “Intoxication in itself does not constitute mental disease or defect within the meaning of § 13A-3-1.” Section 13A-3-1(a), Ala.Code 1975, provides: “It is an affirmative defense to a prosecution for any crime that, at the time of the commission…”
Sharifi v. State (Ala. Crim. App. 2008). · cites it 4× “This issue was never presented to the circuit court. Moreover, in Sharifi's brief he makes no reference to his own case.”
Kahler v. Kansas (2020). · cites it 2× “, Ala. Code § 13A-3-1 (2015). Others prohibit its assertion by defendants with specific mental disorders.”
Borden v. Allen (11th Cir. 2011). · cites it 2× “Ala.Code § 13A-3-1. [5] The State did not present any evidence regarding Borden's mental health during its case in chief.”
Archie v. State (Ala. Crim. App. 2003). · cites it 17× “88-654, now codified at Ala.Code § 13A-3-1 (Supp.1990). Subsection (a) of that statute provides that: "`It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
Janezic v. State (Ala. Crim. App. 1996). · cites it 17× “88-654, now codified at Ala.Code § 13A-3-1 (Supp. 1990). Subsection (a) of that statute provides that: "`It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
Neelley v. State (Ala. Crim. App. 1985). · cites it 4× “"One researcher suggests that the psychological effects of the Battered Spouse Syndrome can be compared to classic brainwashing", see Steinmetz, Wife Beating: A Critique and Reformulation of Existing Theory, 6 Amer.”
Miller v. State (Ala. Civ. App. 2011). · cites it 5× “’ Ala.Code § 13A-3-1. However, as demonstrated during trial and the [Rule 32] evidentiary hearing, none of the four mental health experts who examined Miller concluded that he was unable to appreciate the nature and quality of his actions.”
Donald Dwayne Whatley v. State of Alabama. (Ala. Crim. App. 2010). · cites it 3× “Although intoxication in itself does not constitute a mental disease or defect within the meaning of § 13A-3-1, Code of Alabama 1975, intoxication does include a disturbance of mental or physical capacities resulting from the introduction of any substance into the body.”
— Ala. Code § 13A-3-1(a) — 16 cases
Williams v. Allen (11th Cir. 2010). “2004) (explaining that Ala.Code § 13A-3-1, provides that insanity is an "affirmative defense which the defendant must prove by clear and convincing evidence”).”
Archie v. State (Ala. Crim. App. 2003). “88-654, now codified at Ala.Code § 13A-3-1 (Supp.1990). Subsection (a) of that statute provides that: "`It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
Kahler v. Kansas (2020). “, Ala. Code § 13A-3-1 (2015). Others prohibit its assertion by defendants with specific mental disorders.”
Janezic v. State (Ala. Crim. App. 1996). “88-654, now codified at Ala.Code § 13A-3-1 (Supp. 1990). Subsection (a) of that statute provides that: "`It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
— Ala. Code § 13A-3-1(c) — 7 cases
Click v. State (Ala. Crim. App. 1996).
Williams v. State (Ala. Crim. App. 1996). “88-654, now codified at Ala.Code § 13A-3-1 (Supp. 1990). Subsection (a) of that statute provides that: "`It is an affirmative defense to a prosecution for any crime that, at the time of the commission of the acts constituting the offense, the defendant, as a result of a severe…”
Williams v. Allen (11th Cir. 2010). “2004) (explaining that Ala.Code § 13A-3-1, provides that insanity is an "affirmative defense which the defendant must prove by clear and convincing evidence”).”
Thomas v. State (Ala. Crim. App. 1998).
Commonwealth v. Keita (Mass. 1999).
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