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Supreme Court Hears Alabama Appeal on Using IQ Tests to Bar Executions

The justices will decide whether judges must rely on holistic evidence when scores hover near 70.

Overview

  • Oral arguments in Hamm v. Smith focus on how courts should weigh multiple IQ results close to 70 when assessing intellectual disability under the Eighth Amendment.
  • Joseph Clifton Smith, 55, recorded five IQ scores between 72 and 78, and lower federal courts vacated his death sentence after a holistic review of testing, adaptive deficits and life history.
  • Alabama contends that scores above 70 defeat his claim and argues the lower courts misread Supreme Court precedent on test error and adaptive functioning.
  • The U.S. Justice Department and 20 states back Alabama’s position, while the American Psychological Association and American Psychiatric Association urge evaluations that go beyond test numbers.
  • A ruling expected by June 2026 could redefine how death-row disability claims are evaluated nationwide and determine whether Smith remains ineligible for execution.