Intellectual Disability and the Death Penalty in Georgia

Few areas of capital sentencing law have changed as dramatically and as recently in Georgia as the standard for excluding intellectually disabled defendants from execution. A 2025 statutory overhaul brought Georgia’s procedure in line with every other death-penalty state in the country, after decades under a standard widely regarded as the strictest in the nation.

The Constitutional Backdrop: Atkins v. Virginia

In Atkins v. Virginia, 536 U.S. 304 (2002), the United States Supreme Court held that executing an intellectually disabled person violates the Eighth Amendment’s prohibition on cruel and unusual punishment. The decision did not specify a single national procedure for how states must determine intellectual disability; it left states latitude to design their own evidentiary and procedural frameworks, so long as the substantive bar on executing intellectually disabled defendants was honored. That latitude is what allowed Georgia’s standard to diverge so sharply from the rest of the country for more than two decades.

Georgia’s Former Standard: Beyond a Reasonable Doubt

From 1988 until 2025, Georgia required a capital defendant to prove intellectual disability beyond a reasonable doubt, the same exacting standard the prosecution must meet to prove guilt. No other death-penalty state imposed a burden this high on the defense for this particular determination. The practical consequence was significant: under this standard, no defendant charged with intentional homicide in Georgia ever successfully proved intellectual disability to a jury. The standard functioned, in effect, as a near-total bar to a defense that the Supreme Court had said the Constitution required states to provide.

The reasonable-doubt standard also meant the intellectual disability question was decided by the same jury hearing the underlying criminal case, often as part of the same trial process used to determine guilt and, where applicable, sentence.

HB 123 and the 2025 Reform

HB 123, signed into law and effective May 13, 2025, restructured this process in two major ways. First, it lowered the burden of proof from beyond a reasonable doubt to a preponderance of the evidence, the same standard used by every other death-penalty jurisdiction. A preponderance standard asks only whether it is more likely than not that the defendant has an intellectual disability, a substantially lower bar than proof beyond a reasonable doubt.

Second, HB 123 moved the determination out of the trial jury’s hands and into a pretrial hearing decided by a judge. Under the new procedure, the defense submits its intellectual disability claim 60 days before the hearing, and the prosecution has 30 days to respond. Deciding the issue before trial, separately from the guilt-phase jury, changes both the timing and the decision-maker for what had previously been a single combined determination.

What Happens When a Defendant Is Found Intellectually Disabled

The consequence of a successful intellectual disability finding remains the same under the new procedure as it was conceptually under the old one: a defendant found to be intellectually disabled is not eligible for a death sentence. The case instead proceeds toward a sentence of life imprisonment or life without parole, consistent with the constitutional bar established in Atkins. What has changed is not the ultimate consequence of the finding but the standard of proof and the procedural posture used to reach it.

Why This Reform Matters

Georgia’s prior standard was not simply stricter than other states’ standards in degree; for more than two decades it appears to have functioned as an effectively insurmountable barrier in intentional-homicide cases. The shift to a preponderance standard, decided by a judge before trial rather than folded into a jury’s guilt determination, represents one of the most significant procedural changes to Georgia capital sentencing law in recent years. Readers researching Georgia’s death penalty framework should understand that the law in this area looked very different before May 2025 than it does now, and that older descriptions of Georgia’s intellectual disability standard may no longer reflect current procedure.

This article provides general information about Georgia law and is not legal advice. Consult a licensed Georgia attorney about a specific situation.