testimony clearly established that Rodriguez was a coconspirator of Jarrett’s within the meaning of United States v. Gil, 604 F.2d 546 (7th Cir.1979). Furthermore, Jarrett failed to object to the admission of Rodriguez’s statements at trial.
V. Sentencing
Jarrett attacks his sentence imposed under the dangerous special offender statute, 18 U.S.C. § 3575, arguing that the district court’s findings concerning “dangerousness” are not supported by the record and are clearly erroneous, that the court abused its discretion in relying upon the witness Mara and the police reports for corroboration of the witness Brown’s testimony, and that the court erred in not explaining “why a twenty five year sentence is required when the maximum under the statute is twenty years.” We find Jarrett’s claims meritless.
Jarrett contends the finding of dangerousness to be unsupported by the record because Brown’s testimony is incredible. As the finder of fact in the sentencing hearing, however, the court was entitled to accord such weight as it saw fit to Brown’s testimony. United States v. Inendino, 604 F.2d 458, 463-64 (7th Cir.), cert. denied, 444 U.S. 932, 100 S.Ct. 276, 62 L.Ed.2d 190 (1979); United States v. Williamson, 567 F.2d 610, 615-16 (4th Cir.1977). Additionally, Brown’s testimony was corroborated by Mara’s testimony and by the police records.
Jarrett complains that Mara did not testify as to his personal knowledge concerning Jarrett’s participation in a burglary of a Jewel grocery store and other incidents. Pursuant to Rule 1101(d)(3) of the Federal Rules of Evidence, the Rules do not apply in sentencing hearings. Thus, the Rules relating to hearsay do not apply. A judge may properly conduct a broad inquiry, “largely unlimited either as to the kind of information he may consider, or the source from which it may come.” United States v. Tucker, 404 U.S. 443, 446, 92 S.Ct. 589, 591, 30 L.Ed.2d 592 (1972). Hearsay evidence is admissible in sentencing proceedings, including- dangerous special offender proceedings. United States v. Inendino, 604 F.2d 458, 463 (7th Cir.), cert. denied, 444 U.S. 932, 100 S.Ct. 276, 62 L.Ed.2d 190 (1979).
Similarly, regarding Jarrett’s claim of lack of authentication, Rule 901 of the Federal Rules of Evidence is inapplicable. In particular, however, Jarrett points out that the FBI agent at the sentencing hearing did not make copies of the police reports himself, or compare them with the originals for accuracy. However, the copies in question were xeroxes of the original — “admissible to the same extent as an original” under Rule 1003 of the Federal Rules of Evidence, unless “a genuine question is raised as to the authenticity of the original.” Fed.R. Evid. 1003. Thus, even if the Rules applied, the fact that the agent did not make the xerox or conform it with the original would make no difference. Although defense counsel called the accuracy into question in form, he did not do so in substance. Further, the district court assured Jarrett he would consider the reports “with a grain of salt,” and would consider them for the “limited purpose of ... determining whether or not there is any corroboration in this record as to the testimony given by Brown.” Tr. 343-44.
Finally, Jarrett contends that the district court erred in failing to explain its findings concerning “dangerousness” under 18 U.S.C. § 3575(f). “A defendant is dangerous” under Section 3575(f) “if a period of confinement longer than that provided for such felony is required for the protection of the public from further criminal conduct by the defendant.” 18 U.S.C. § 3575(f). In United States v. Neary, 552 F.2d 1184, 1193 (7th Cir.), cert. denied, 434 U.S. 864, 98 S.Ct. 197, 54 L.Ed.2d 139 (1977), we noted that a trial court must make additional factual determinations of “special” and “dangerous” after a verdict of guilty to support the imposition of a sentence longer than the maximum sentence normally applicable to the crime. A finding of dangerousness under Section 3575(f) in