Heller v. Doe (1993)
By: Layna Grassi
Overview
Heller v. Doe (1993) is a Supreme Court case in which the petitioner, the Secretary of the Kentucky Cabinet for Human Resources, argued that Kentucky's two track system for involuntarily committing people with intellectual disabilities versus people with mental illness was constitutional even though it imposed different procedural protections on each group. The respondent, a class of involuntarily committed individuals with intellectual disabilities, argued that these procedural differences violated the Equal Protection and Due Process Clauses of the Fourteenth Amendment. The primary issue in this case was whether a state may use a lower burden of proof and broader family/guardian participation rights in commitment proceedings for people with intellectual disabilities than it uses in commitment proceedings for people with mental illness, without violating the Constitution.
Summary
Kentucky law allowed the involuntary civil commitment of people who were either intellectually disabled or mentally ill, so long as they posed a danger to themselves or others, could reasonably benefit from treatment, and had no less restrictive placement option available [2]. The state's commitment procedures for the two groups differed in two keyways. First, commitment based on intellectual disability only required proof by "clear and convincing evidence," a lower standard, while commitment based on mental illness required proof "beyond a reasonable doubt" [1].
Additionally, close relatives and guardians of a person facing commitment for intellectual
disability could participate in the proceedings as if they were formal parties, including the right to cross-examine witnesses and appeal, which is a right not extended to relatives of those facing commitment for mental illness [2].
A class of individuals committed on grounds of intellectual disabilities sued, arguing these distinctions were irrational and therefore violated equal protection, and that allowing family members to participate as parties violated due process. The district court agreed and granted summary judgment for the plaintiffs, and the Sixth Circuit affirmed [1].
In a 5-4 decision authored by Justice Anthony Kennedy, the Supreme Court reversed. Applying rational basis review, since no fundamental right or suspect classification was at stake, the Court held that Kentucky's distinctions easily survived scrutiny [2]. The Court reasoned that intellectual disabilities, as a developmental condition typically diagnosed in childhood, are generally easier to diagnose. And it is better documented than mental illness, which can arise suddenly in adulthood. This difference could rationally justify a higher burden of proof for mental illness commitments, since a higher burden offsets the greater risk of a mistaken diagnosis [1]. The Court also reasoned that the state could rationally conclude relatives and guardians of a person with intellectual disabilities often possess longstanding, intimate knowledge useful to the court. Whereas a mentally ill person's family may have had less recent involvement in their care, and that newly mentally ill individuals might have a stronger privacy interest in limiting who participates in the proceeding [2]. On the due process claim, the Court applied the three factor balancing test from Mathews v. Eldridge and concluded that allowing relatives and guardians to participate as parties actually improves the accuracy of commitment decisions rather than undermining them. This is because due process protects an individual's interest in an accurate outcome, not necessarily a favorable one [1].
Justice Sandra Day O'Connor concurred in part and dissented in part, agreeing that the family participation rule was constitutional, but sided with the dissent on the burden of proof question. Justice Harry Blackmun dissented separately to reaffirm his view that disability-based classifications should receive heightened scrutiny. Justice David Souter, joined by Justices Blackmun and John Paul Stevens (and by Justice O'Connor as part of the opinion), dissented at length, arguing that the state's justifications did not hold up under even rational basis review. They argued that medical literature showed that people with intellectual disabilities were routinely subjected to invasive drug and behavioral therapies just as intrusive as those used for mental illness, and that the state offered no rational reason why relatives of a person with intellectual disabilities should be allowed to act as a second advocate for commitment in these proceedings while relatives of a mentally ill person could not [2].
Impact
This decision reinforced the highly deferential nature of rational basis review, confirming that a state doesn’t need to produce evidence or even need to articulate its actual reasoning to justify a classification, so long as a court can imagine any plausible rational basis for it [1]. By upholding Kentucky's differing procedural protections for intellectual disabilities and mental illness commitments, the Court signaled that disability-based classifications, when they do not involve a suspect class or fundamental right, will be sustained even where the factual premises behind them are contested or imperfectly supported in the record [2]. The ruling has been frequently cited, but also criticized for permitting states wide latitude to treat different categories of civil commitment differently based on generalized assumptions rather than demonstrated evidence, and it remains an important touchstone in debates over whether disability classifications should receive more searching judicial scrutiny.
Court Documents
Heller v. Doe, 509 U.S. 312 (1993)
Citations
[1] "Heller v. Doe." Oyez, www.oyez.org/cases/1992/92-351. Accessed 01 Oct. 2026.
[2] "Heller v. Doe, 509 U.S. 312 (1993)." Justia U.S. Supreme Court Center, supreme.justia.com/cases/federal/us/509/312/. Accessed 01 Oct. 2026.
