Autism and ADHD Forensic Evaluations in Alabama: Legal Evaluations for Neurodivergent Individuals

Upward Behavioral Health | Birmingham, Alabama | Serving Alabama and PsyPact States

When an autistic person or a person with ADHD is arrested or charged in Alabama, the outcome often turns on whether anyone in the courtroom understands what they are looking at.

Reduced eye contact, flat vocal tone, literal answers, delayed responses, fidgeting, or a decision made in two seconds get read as evasion, intoxication, arrogance, or lack of remorse. That misreading shapes charging decisions, plea negotiations, competency findings, and sentences.

This page explains how autism and ADHD bear on Alabama criminal cases — competency to stand trial under Rule 11, the insanity standard under Ala. Code § 13A-3-1, actus reus and mens rea defenses, stalking charges, and sentencing mitigation.

Upward Behavioral Health provides capacity and forensic evaluations, autism evaluations, and autism and ADHD evaluations for children and adults from our Birmingham office and throughout Alabama. Our licensed clinical psychologists are available for testimony.

A Note on Legal Language

Terms like insanity, mental defect, mental disease, and disorder appear throughout this page. These are “legal terms of art” written into Alabama statutes and jury instructions. They are not neurodiversity-affirming, and they are not how we speak with our clients.

Autism is a neurodevelopmental difference, not a defect. ADHD is a difference in attentional and executive regulation, not a character flaw. We use the statutory vocabulary here only so attorneys and families searching for these exact terms can find accurate information. Our clinical practice is neurodiversity-affirming.

How Common Are Autism and ADHD?

The CDC’s current estimate is 1 in 31 children (3.2%) for autism, based on 2022 surveillance data published in April 2025. The widely cited earlier figure of 1 in 54 comes from the CDC’s 2016 surveillance year. [1,2]

ADHD is more common: approximately 1 in 9 U.S. children (11.4%) have received a diagnosis, and an estimated 15.5 million U.S. adults (about 6%) had current ADHD as of 2023 — with more than half first diagnosed in adulthood. [3,4]

One-third of autistic individuals also have an intellectual disability. CDC data from the 2016 surveillance year found 33% of children with autism had an IQ of 70 or below, higher among girls (40%) than boys (32%). [1] In those cases, two distinct impairments operate at once and require separate assessment through a cognitive evaluation.

The remaining two-thirds have average or superior intelligence, and are the group whose support needs courts most often overlook.

Autism and ADHD Frequently Occur Together

ADHD is the most common co-occurring diagnosis among autistic people, at roughly 37–39% in meta-analyses. [5] Among adults, one study of 3.5 million people found 27% of autistic adults without intellectual disability had co-occurring ADHD — about ten times the general adult rate. [6]

Yet only about 16% of children with both conditions had been diagnosed with both. [7] Before DSM-5 in 2013, clinicians were prohibited from diagnosing them concurrently — so many Alabama adults now facing charges were assessed under a rule that made the correct diagnosis impossible.

Why Do Neurodivergent People Encounter Alabama Courts?

A widely cited figure holds that autistic individuals are up to seven times more likely to intersect with the criminal justice system. [8] The evidence is mixed, but two findings are consistent: autistic people are far more likely to be victims than perpetrators, and co-occurring psychiatric conditions sharply increase risk. [9]

The Finding That Should Reframe These Cases

The largest study to date followed 295,734 individuals, including 5,739 autistic people. Autism initially appeared associated with violent offending — but once co-occurring ADHD and conduct disorder were accounted for, the association disappeared and reversed. [10]

At the population level, autism by itself was not associated with convictions for violent crime. ADHD and conduct disorder explained the apparent link.

Two consequences for counsel: prosecutors implying that autism is criminogenic are contradicted by the best available data — and in any case involving an autistic defendant, screening for ADHD is not optional, because that is often where the real explanation lies.

Different Conditions, Different Pathways

Autism: behavior misread as deception or intoxication; unwritten social rules never explicitly taught; difficulty recognizing others’ malevolent intent, leading to exploitation; intense circumscribed interests that cross legal lines; sensory overload escalating police encounters.

ADHD: a compressed interval between impulse and action; emotional dysregulation and reactive aggression; executive dysfunction producing missed court dates and probation violations that read as defiance; substance use; reduced sensitivity to delayed consequences.

Interrogation and False Confession Risk

Both conditions create vulnerability, through different mechanisms. In a study of 90 prisoners, 50% met screening criteria for childhood ADHD, and ADHD symptoms were significantly associated with compliance and with reported false confessions. [11] A larger follow-up found a 33.4% false confession rate, with hyperactivity/impulsivity — not inattention — driving the association. [12]

Autistic suspects face different risks: literal interpretation of questions, acquiescence to leading questions, confabulation, and inability to recognize that an officer’s friendly manner is a technique.

Any interrogation of a neurodivergent client warrants review of the recording, not just the transcript.

Autism, ADHD, and Alabama Stalking Charges

Stalking charges are among the most common ways autistic adults enter the criminal system.

Research found autistic adults were more likely to engage in inappropriate courtship behaviors and to pursue a target far longer than non-autistic peers — and reported receiving essentially no instruction in romantic and social skills from any source. [13] Contributing factors include failure to recognize indirectly communicated rejection, interpreting ordinary politeness as reciprocal interest, and inability to generate the other person’s perspective.

Where ADHD is present, impulsive repeated contact and difficulty inhibiting a message the person knows they shouldn’t send may satisfy the “repeatedly” element without any campaign of intimidation behind it.

This matters because Alabama’s stalking statutes require specific intent. Stalking in the first degree (Ala. Code § 13A-6-90) requires intent to place that person in reasonable fear of death or serious bodily harm. Stalking in the second degree (§ 13A-6-90.1) requires acting “with an improper purpose.”

A forensic evaluation can address whether that mental state was formed — a genuine merits question about an element the State must prove, not a sympathy argument.

Autism and ADHD in Prison

A U.S. maximum-security prison study found 4.4% of inmates screened positive for autism, roughly four times the general population rate. [14] For ADHD, meta-analyses range from 8% to 27% depending on methodology — an unresolved dispute worth citing as a range rather than a single figure. [15]

Overrepresentation does not mean higher offending. Reviews find autistic people offend at rates lower than or comparable to the general population. [9] What drives the numbers is what happens after contact.

Once incarcerated, autistic prisoners are disproportionately exploited, bullied, and ostracized, receive more disciplinary sanctions, and are more often placed in segregation. [16] Prisoners with ADHD show substantially elevated institutional aggression, and frequently have medication discontinued at intake — removing treatment exactly when regulation matters most.

Competency to Stand Trial in Alabama (Rule 11)

Under Rule 11.1, Ala. R. Crim. P., a defendant is incompetent if they lack “sufficient present ability to assist in his or her defense by consulting with counsel with a reasonable degree of rational understanding of the facts and the legal proceedings.” This tracks Dusky v. United States, 362 U.S. 402 (1960).

Two points matter:

Competency is functional, not diagnostic. The comments to Rule 11.1 state that the mere presence of a mental disorder, regardless of severity, is not a sufficient basis for incompetency.

Competency and insanity are separate questions. A defendant may be competent to stand trial and still have grounds for an insanity defense, or the reverse.

The forensic literature warns that courts overestimate the competency of autistic defendants — especially those with average or above-average intelligence. [17] A defendant who can define “plea bargain” may still be unable to weigh a probabilistic outcome, may take counsel’s shorthand literally, or may agree out of compliance rather than understanding.

ADHD rarely supports incompetency but frequently justifies accommodations: shorter attorney conferences, written summaries, a mandated pause before plea decisions, and appearance reminders.

Autism and ADHD as a Potential Defense

Neither condition is itself a defense. But evidence of either may negate an element the prosecution must prove.

Actus Reus — Negating the Act

State v. Suber, No. A06-2438, 2008 WL 942622 (Minn. Ct. App. Apr. 8, 2008). Suber was convicted of driving under the influence based entirely on an officer’s observations — jitteriness, no eye contact, “robotic type movements,” poor field sobriety performance. No breathalyzer or blood test was administered.

The Minnesota Court of Appeals reversed, finding insufficient evidence of impairment and noting the officer had not considered how autism affected Suber’s behavior and test performance. [17]

The ADHD parallel is direct: field sobriety tests assume neurotypical attention, balance, and instruction-following. A sober person with ADHD may fail divided-attention components, lose the count, or begin before instructions finish.

This generalizes to any offense defined by observable behavior — DUI, disorderly conduct, resisting arrest, public intoxication.

Mens Rea — Negating Intent

United States v. Cottrell, 333 F. App’x 213 (9th Cir. 2009). William Jensen Cottrill, a Caltech graduate student with Asperger’s syndrome (i.e., autism spectrum disorder, level 1 or 2), was convicted of conspiracy and seven counts of arson. The district court limited expert testimony about his diagnosis.

The Ninth Circuit vacated the arson convictions, holding the exclusion was error. Because aiding and abetting is a specific intent crime, the diagnosis was relevant as evidence “aimed at defeating an inference of Cottrell’s intent from the circumstances.” [17]

Autism evidence typically attacks an inference about understanding. ADHD evidence attacks an inference about deliberation: premeditation, planning, or purpose inferred from the structure of conduct.

Caveat: admissibility of psychiatric testimony to negate mens rea varies sharply by jurisdiction. Some states reject diminished capacity entirely. Compare State v. Burr, 2013 N.J. Super. Unpub. LEXIS 1130, reversing where expert testimony on an Asperger’s diagnosis was excluded.

Insanity Under Alabama Law

Alabama follows a M’Naghten-derived cognitive test with critical modifications. Ala. Code § 13A-3-1 provides:

(a) It is an affirmative defense… 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.

(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.

The volitional prong is gone. Alabama pioneered the “irresistible impulse” test in Parsons v. State, 81 Ala. 577, 2 So. 854 (1887). After the Hinckley verdict, the legislature amended § 13A-3-1 in 1988 (Act 88-654) to eliminate it. A defendant who knew an act was wrong but could not stop no longer satisfies Alabama’s test.

The condition must be “severe,” tracking the federal Insanity Defense Reform Act of 1984.

“Unable to appreciate” is stricter than the ALI “lacks substantial capacity” formulation.

How Alabama Defines “Mental Disease or Defect”

Section 13A-3-1 does not affirmatively define the term. Subsection (b) defines it only by exclusion. There is no statutory list of qualifying diagnoses; the question is resolved through expert testimony guided by Alabama’s pattern jury instructions, which parse nature (knowing what one was doing), quality (awareness of consequences and significance), and wrongfulness separately.

For autistic defendants, insanity is difficult. Most autistic people know assault is wrong in the cognitive sense the statute requires. The viable arguments center on the “quality” prong — inability to appreciate the consequences or significance of the act — and are strongest where autism co-occurs with intellectual disability or another severe condition.

For ADHD, an insanity defense will essentially never succeed in Alabama. ADHD is a volitional impairment, and Alabama abolished the volitional prong. The core ADHD argument is precisely the Parsons argument the 1988 amendment eliminated.

For most neurodivergent defendants in Alabama, the stronger strategies are competency and accommodation analysis, actus reus and mens rea arguments, interrogation scrutiny, and sentencing mitigation.

Sentencing and Mitigation

Reduced blameworthiness. Autistic individuals may understand conduct is illegal without appreciating its social and emotional implications for victims.

Prison is disproportionately harmful. In United States v. Morais, 670 F.3d 889 (8th Cir. 2012), an expert testified the autistic defendant would be victimized, misunderstood by staff, and gain no benefit from incarceration.

ADHD carries a treatability argument autism does not. Using Swedish national registers covering 25,656 patients, researchers found ADHD medication periods associated with a 32% reduction in criminality for men and 41% for women versus non-medication periods in the same patients. [18] That converts a diagnosis into a concrete proposal: treatment as a condition of probation, with a measurable expected effect.

Courtroom presentation is not character. Flat affect, no eye contact, visible fidgeting, or apparent boredom during victim testimony are read as coldness — and held against defendants at sentencing — absent expert explanation.

Our Forensic Evaluations in Alabama

A generic evaluation misses autism in adults who mask, in women and girls, and in people with high IQs. It misses ADHD just as often. And a general “neurodivergence” opinion that doesn’t distinguish the two is not useful in court.

Our capacity and forensic evaluations include:

• Record review — prior evaluations, IEPs and 504 plans, school and disciplinary records, medical history, and where relevant body camera footage and interrogation recordings
• Differential diagnosis — distinguishing autism and ADHD from anxiety, OCD, trauma, bipolar disorder, and conduct or antisocial presentations (a dangerous misattribution, since § 13A-3-1(b) expressly excludes it)
• Cognitive and executive function testing — cognitive evaluations covering intellectual functioning, adaptive behavior, working memory, and processing speed
• Condition-specific assessment — gold-standard autism instruments plus validated ADHD measures with collateral and retrospective childhood report
• Interrogative vulnerability assessment where confession reliability is at issue
• Function-specific forensic opinion answering the referral question, not merely stating a diagnosis
• Expert testimony by our licensed clinical psychologists
• Expedited scheduling at twice our standard hourly rate when a court date requires it

Serving Alabama Families and Attorneys

We provide in-person evaluations in Birmingham, Huntsville, and Tuscaloosa, and virtual evaluations across all PsyPact states. For clients who are hospitalized, incarcerated, or unable to travel, we make every effort to come to them.

Fees range from $225 to $250 per hour. If an evaluation is needed quickly, “rush” requests can generally be accommodated at $450 to $500 per hour. Attorneys, case managers, and school systems can refer a client here.

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