The US Supreme Court today unanimously reversed a decision of the Sixth Circuit, overturning a Michigan murderer's conviction on habeas corpus. The Michigan Legislature passed a reform of mental defenses in 1975, but the state Court of Appeals failed to recognize that the statute had abolished the "diminished capacity" defense. It was not until 2001 that the Michigan Supreme Court corrected that error, and the underlying question in Metrish v. Lancaster was whether that correction could apply in the retrial for a 1993 murder. The case is described in more detail in my post after the oral argument.
The Supreme Court's jurisprudence on retroactivity of court decisions (as opposed to statutes), is less than crystal clear, and one might make a reasonable argument on the merits that this retroactive application crosses the fuzzy line. Under Congress's 1996 reform of federal habeas corpus (AEDPA), though, that is not the question for the federal court. The Michigan state courts decided the merits question, adversely to Lancaster. "To obtain habeas corpus relief from a federal court, a state prisoner must show that the challenged state-court ruling rested on 'an error well understood and comprehended in existing law beyond any possibility for fair minded disagreement.' Harrington v. Richter, 562 U. S. ___, ___ (2011) (slip op., at 12-13)."
Where the merits question is close, the AEDPA question is easy. The state court decision was well within the bounds of "fair minded disagreement." The Sixth Circuit decision to the contrary was beyond wrong. It was lawless.
The Supreme Court's jurisprudence on retroactivity of court decisions (as opposed to statutes), is less than crystal clear, and one might make a reasonable argument on the merits that this retroactive application crosses the fuzzy line. Under Congress's 1996 reform of federal habeas corpus (AEDPA), though, that is not the question for the federal court. The Michigan state courts decided the merits question, adversely to Lancaster. "To obtain habeas corpus relief from a federal court, a state prisoner must show that the challenged state-court ruling rested on 'an error well understood and comprehended in existing law beyond any possibility for fair minded disagreement.' Harrington v. Richter, 562 U. S. ___, ___ (2011) (slip op., at 12-13)."
Where the merits question is close, the AEDPA question is easy. The state court decision was well within the bounds of "fair minded disagreement." The Sixth Circuit decision to the contrary was beyond wrong. It was lawless.