Here is a nugget from the oral argument transcript in Beard v. Kindler. How does a state punish an escape by a person sentenced to death? One way is to declare his claims against his sentence forfeited, but Matthew Lawry was arguing against that:
CHIEF JUSTICE ROBERTS: No, no. Obviously if the State prevails he's in a worse position. But under your view, he's in this -- he's in no worse position. He hasn't waived all his objections and claims, procedures.
MR. LAWRY: Well, there are certainly other things that the State can do. They can -- they can prosecute him criminally for escape. There is administrative confinement, those kinds of things. But there is really --
JUSTICE SCALIA: Before or after his execution?