Weaver v. Graham

Summary

The Court held that Florida's revised gain-time statute violated the Ex Post Facto Clause as applied to a prisoner whose offense preceded the statute's enactment. The statute operated retrospectively because it changed the legal consequences of the completed offense, and it disadvantaged the prisoner by reducing automatically available credits and lengthening the period of incarceration. The judgment was reversed and the case remanded so the state court could apply the law in effect when the offense occurred, to the extent possible.