Whether the Supreme Court had jurisdiction to review Louisiana’s refusal to apply Miller retroactively in a state collateral proceeding.
Holding
Yes. The Court had jurisdiction because the Constitution requires state collateral-review courts to give retroactive effect to new substantive constitutional rules when those rules control a properly presented claim.
Reasoning
The Court distinguished Teague v. Lane’s general bar on retroactive application of new procedural rules from Teague’s treatment of substantive rules. Although Teague arose in federal habeas proceedings and its general procedural nonretroactivity rule does not limit the relief States may provide, neither Teague nor Danforth v. Minnesota decided whether States must apply new substantive rules as a constitutional matter.
Substantive rules do more than regulate the procedures used to determine guilt or punishment. They categorically place certain conduct or certain punishments for particular classes of defendants beyond the State’s power. A conviction or sentence imposed in violation of such a rule is therefore unlawful, not merely potentially inaccurate because of a procedural defect.
The Court relied on the longstanding principle that a conviction under an unconstitutional law is illegal and void. The same reasoning applies when the Constitution removes the State’s authority to impose a particular punishment: no flawless procedure can validate a sentence the State lacks constitutional power to impose.
Under the Supremacy Clause, a state court that opens collateral review to a federal claim challenging the legality of confinement must grant the relief federal law requires. Louisiana permitted collateral challenges alleging that an Eighth Amendment decision had made a sentence illegal, so its courts could not refuse to apply a controlling substantive constitutional rule retroactively. The Court expressly did not decide whether the same constitutional requirement applies to Teague’s separate exception for watershed procedural rules.