William O. Douglas,
Heflin v. United States — Opinion of the Court
“ While joining the Court's opinion, I think it clear that a motion for relief under 28 U.S.C. § 2255, 28 U.S.C.A. § 2255 is available only to attack a sentence under which a prisoner is in custody. That is what the statute says. That is what the legislative history shows. That is what federal courts, faced almost daily with the statute's application, have unanimously concluded. Personal notions as to the kind of a post-conviction statute that Congress might have enacted or should enact are, of course, entirely irrelevant to the inquiry. ”
