Ex Parte Perkins’s Empirical Analysis
2002
Citation profile
8 federal appellate · 50 state decisions
How this case has been cited
Cited by 68 later decisions (1 by the Supreme Court) — most recently May 2026 · most notably Boyd v. State (2003), Bowling v. Commonwealth (2005)
8 federal appellate · 50 state decisions
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 68 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“"Although the Legislature has not had an occasion to address this State’s policy on this matter and establish a procedure for determining whether a capital defendant is mentally retarded and therefore not subject to the death penalty, we conclude that Perkins does not suffer from mental retardation under the definitions considered by the United States Supreme Court in reaching its holding in Atkins or as defined by any of the state statutes that prohibit the imposition of the death sentence on a mentally retarded defendant. "... Those states with statutes prohibiting the execution of a mentally retarded defendant require that a defendant, to be considered mentally retarded, must have significantly subaverage intellectual functioning (an IQ of 70 or below), and significant or substantial deficits in adaptive behavior. Additionally, these problems must have manifested themselves during the developmental period (i.e., before the defendant reached age 18).””
3 later decisions quote this exact passage
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.