Under this rule, once a prisoner makes the requisite preliminary showing that his current mental state would bar his execution, the [[Eighth Amendment]], applicable to the States under the [[Due Process Clause]] of the [[Fourteenth Amendment]], entitles him to an adjudication to determine his condition. | Under this rule, once a prisoner makes the requisite preliminary showing that his current mental state would bar his execution, the [[Eighth Amendment]], applicable to the States under the [[Due Process Clause]] of the [[Fourteenth Amendment]], entitles him to an adjudication to determine his condition. |