# Court Sidesteps Death-Row IQ Dispute
The Supreme Court declined to resolve a contentious question about intellectual disability and capital punishment, leaving unresolved whether states must use updated intelligence testing standards when determining if death-row inmates qualify for execution exemptions.
The dispute centers on Atkins v. Virginia, the landmark 2002 ruling that barred executing individuals with intellectual disabilities. States apply different methodologies to measure IQ, creating a patchwork of standards that can mean the difference between execution and life imprisonment.
The petitioner argued the Court should require states to apply current clinical definitions of intellectual disability rather than outdated cutoff scores. Federal courts have split on this question, with some circuits holding that defendants retain the right to present evolving medical understanding of disability thresholds.
The Court's denial of certiorari leaves lower court decisions in tension. In some jurisdictions, death-row inmates can argue their IQ scores should be interpreted under modern diagnostic standards from the American Psychiatric Association's DSM-5 and the American Association on Intellectual and Developmental Disabilities. Other states restrict inmates to testing protocols established at the time of their trial or conviction.
This creates practical consequences. An IQ score of 70 once considered the bright-line threshold for intellectual disability protection now sits closer to the range where clinical judgment about adaptive functioning becomes determinative. State expert witnesses and defendants' experts frequently clash over which standards apply.
Capital defense attorneys view the denial as a setback. They contend fixed historical standards ignore advances in understanding intellectual disability and perpetuate execution of vulnerable defendants. Prosecutors argue that allowing perpetual reconsideration of Atkins eligibility through new testing standards reopens settled convictions and creates unnecessary litigation.
The decision to deny certiorari leaves the circuit split intact, meaning capital cases will continue following different Atkins frameworks depending on venue. Death-row inmates in