Hamm v. Smith · ¶131

Initially, Atkins entrusted States with the task of developing judicially manageable criteria to define intellectual disability and assess a defendant's IQ. 536 U. S., at 317; Bies, 556 U. S., at 831. In the ensuing years, however, this Court has inserted itself into that role and constitutionalized various rules for evaluating intellectual disability. Three of these rules concern IQ cutoffs and test scores.

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