U.S. Sup. Ct.
12-418

Respondent Kebodeaux was convicted by a special court-martial of a federal sex offense. After serving his sentence and receiving a bad conduct discharge from the Air Force, he moved to Texas where he registered with state authorities as a sex offender. Congress subsequently enacted the Sex Offender Registration and Notification Act (SORNA), which requires federal sex offenders to register in the States where they live, study, and work, 42 U. S. C. §16913(a), and which applies to offenders who, when SORNA became law, had already completed their sentences, 28 CFR §72.3. When Kebodeaux moved within Texas and failed to update his registration, the Federal Government prosecuted him under SORNA, and the District Court convicted him. The Fifth Circuit reversed, noting that, at the time of SORNA’s enactment, Kebodeaux had served his sentence and was no longer in any special relationship with the Federal Government. Believing that Kebodeaux was not required to register under the preSORNA Jacob Wetterling Crimes Against Children and Sexually Violent Offender Registration Act, the court found that he had been “unconditionally” freed. That being so, the court held, the Federal Government lacked the power under Article I’s Necessary and Proper Clause to regulate his intrastate movements.