18 U.S.C. § 3661Section
§ 3661. Use of information for sentencing
No limitation shall be placed on the information concerning the background, character, and conduct of a person convicted of an offense which a court of the United States may receive and consider for the purpose of imposing an appropriate sentence.
(Added Pub. L. 91–452, title X, §1001(a), Oct. 15, 1970, 84 Stat. 951, §3577; renumbered §3661, Pub. L. 98–473, title II, §212(a)(1), Oct. 12, 1984, 98 Stat. 1987.)