A unanimous California Supreme Court today cleared the way for dozens of death row inmates to challenge their sentences on the grounds that they are mentally retarded, setting a standard more lenient than prosecutors had wanted.
The decision was a major loss for prosecutors — who fear a flood of petitions from death row inmates — to have the court strictly define retardation using a specific IQ level. Instead, the justices said that an inmate can get a hearing to challenge a death sentence so long as a qualified expert supports a claim of retardation.
"IQ tests are insufficiently precise to utilize a fixed cutoff in this context," Justice Janice Rogers Brown wrote for the court.
Inmates can have their death sentences reduced to life without parole if lawyers can show they have "significantly subaverage general intellectual functioning" and behavioral and practical disabilities that began before age 18.
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