United States v. Kebodeaux
The Supreme Court ruled that Congress had the power to require a former Air Force member to register as a sex offender under a federal law passed after he had already completed his sentence, because he had been subject to an earlier, similar federal registration law ever since his conviction.
The decision keeps federal sex-offender registration requirements in place for military-connected offenders even after they leave the service, resolving a challenge that had persuaded a federal appeals court to strike the law down as exceeding Congress's constitutional powers.
How it got here: A federal district court convicted Kebodeaux under SORNA; the Fifth Circuit, sitting en banc, reversed and struck down the law as applied; the government sought Supreme Court review.
The Case in Depth
What happened
Anthony Kebodeaux, an Air Force airman, was convicted by court-martial in 1999 of a sex offense involving a minor and served a three-month sentence before receiving a bad-conduct discharge. After moving to Texas and registering as a sex offender there, Congress later passed a federal law requiring registered sex offenders, including those who had already finished their sentences, to keep their registrations current. Kebodeaux was prosecuted for failing to update his registration after moving within Texas.
The question before the Court
Could Congress require a former airman, already released from the military, to keep registering as a sex offender under a federal law passed after he finished his sentence?
The Court's answer
Yes — the Court ruled that Congress could require Kebodeaux to keep registering as a sex offender under the newer federal law, because he had already been subject to a similar federal registration requirement, the Wetterling Act, ever since his military conviction. Since that earlier requirement was validly tied to Congress's power to regulate the armed forces, updating it through the newer law was also a reasonable and lawful exercise of that same constitutional authority.
The Court stressed that Kebodeaux was never truly free of federal ties, contrary to the lower court's assumption, and that the changes the new law made to his registration duties were modest. It did not decide whether the law violates the separate constitutional protections against retroactive punishment or unfair process, since those claims were not raised.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Former servicemembers convicted of sex offenses under military law remain subject to federal registration duties even long after finishing their sentences and leaving the military, and can face federal prosecution for failing to keep that registration current. The ruling also preserves the government's ability to prosecute such registration failures nationwide rather than leaving the matter solely to state law.
What changes now
The case is sent back to the Fifth Circuit for further proceedings consistent with the Supreme Court's ruling that Congress had the constitutional power to apply the updated federal registration law to Kebodeaux. This is a final decision on the merits of the constitutional question, though the lower court must still resolve any remaining issues in the case on remand.
What this does not decide
The Court expressly assumed, without deciding, that the law complies with the Constitution's Ex Post Facto and Due Process Clauses, since Kebodeaux had not raised those challenges. Chief Justice Roberts's concurrence also stressed that the ruling does not establish any general federal police power to regulate former offenders for public-safety reasons alone.
Concurrences and dissents
Concurrence — Justice Roberts
Chief Justice Roberts agreed Congress had power to require registration, but only because of the military-regulation connection, not because of any general public-safety rationale. He worried that the majority's discussion of public-safety benefits could be mistaken for endorsing a federal police power, which he insisted does not exist and was not needed to resolve this case.
Concurrence — Justice Alito
Justice Alito concurred solely on the ground that the registration requirement was necessary and proper to Congress's power to regulate the armed forces. He reasoned that trying servicemembers in military courts instead of state courts can let sex offenders fall through the cracks of state registration systems, and Congress could act to close that gap.
Dissent — Justice Scalia
Justice Scalia joined most of Justice Thomas's dissent but disagreed with one part, taking a broader view of what counts as necessary and proper to execute a valid law. He nonetheless concluded that the earlier Wetterling Act registration requirement was never shown to be a valid exercise of federal power, and that SORNA does not carry that earlier Act into execution.
Dissent — Justice Thomas
“The power to protect society from sex offenders is part of the general police power that the Framers reserved to the States or the people.”The dissent's central objection that the ruling improperly lets Congress exercise a police power reserved to the states.
Justice Thomas argued that Congress had usurped the states' general police power because no enumerated power, including the military-regulation power, actually authorizes SORNA's registration requirement as applied to Kebodeaux, who was a civilian with no remaining federal custody or supervision when the law was enacted. He would have found the conviction unconstitutional as applied.
How the Court got there
The legal reasoning, step by step
- The Court rejected the Fifth Circuit's premise that Kebodeaux had been 'unconditionally released' with no ongoing ties to the federal government, finding instead that an earlier federal registration law, the Wetterling Act, already applied to him at the time of his offense and conviction.
- Because Congress has the power under the Military Regulation Clause and the Necessary and Proper Clause — the provision letting Congress pass laws reasonably suited to carrying out its other powers — to punish military crimes and attach consequences to convictions, the Court found that imposing a registration requirement as one such consequence was a reasonable exercise of that authority.
- The Court treated the later federal law, SORNA, as simply modifying the registration regime Kebodeaux was already legally bound by, rather than imposing a brand-new obligation on someone who had been fully free of federal ties.
- Applying a highly deferential standard under the Necessary and Proper Clause, the Court found it rational for Congress to conclude that post-release registration serves public-safety purposes and that assigning the federal government a role in enforcing it was reasonable given offenders' history under federal supervision.
- Because the changes SORNA made to the pre-existing federal registration scheme were modest and no one argued they were themselves unreasonable, the Court concluded that applying SORNA to Kebodeaux fell within Congress's constitutional authority.
Doctrinal impact
Cases affected by this decision
Reaffirms United States v. Comstock (560 U. S. 126)
The Court relied on Comstock's list of powers Congress may exercise incidental to imprisoning and releasing federal offenders.