Arthur Goldberg,
United States v. Welden — Opinion of the Court
“ The 1906 Act simply limited immunity to persons testifying under oath and in response to subpoena.Our decision today is based solely on the language and legislative history of the relevant congressional enactments. Congress has extended immunity, with careful safeguards, to persons testifying before congressional committees in certain limited situations not here involved. [18] Where Congress, however, has limited immunity to persons testifying in judicial proceedings, as it has plainly done here, it is not for the courts to extend the scope of the immunity. ”
