CA AB2512

Changes the definition of "intellectual disability" to include conditions manifesting before the end of the developmental period, as defined by clinical standards, rather than only before age 18.

Prohibits adjusting or changing intellectual functioning test results based on race, ethnicity, national origin, or socioeconomic status.

Requires courts to order a hearing on intellectual disability upon a prima facie showing of the condition, rather than only upon submission of a qualified expert declaration.

Permits persons under death sentences to apply for intellectual disability hearings as part of habeas corpus petitions, with the petitioner bearing the burden of proof by preponderance of the evidence.

Allows expert testimony regarding out-of-court statements and documentary evidence relevant to intellectual disability diagnosis during evidentiary hearings in habeas corpus proceedings.