Fred M. Vinson,
United States v. Hayman — Opinion of the Court
“ An order to secure respondent's presence in the sentencing court to testify or otherwise prosecute his motion is 'necessary or appropriate' [34] to the exercise of its jurisdiction under Section 2255 and finds ample precedent in the common law. [35] The express language of Section 2255 that a 'court may entertain and determine such motion without requiring the production of the prisoner at the hearing' negatives any purpose to leave the sentencing court powerless to require production of the prisoner in an appropriate case. ”
