A jury in the Western District of Missouri convicted appellant Steven W. Brown of conspiracy to distribute a controlled substance in violation of 21 U.S.C. § 846, and possession, with intent to distribute, a controlled substance in violation of 21 U.S.C. § 841(a)(1). Brown was sentenced to serve 360 months in prison. We affirm the convictions as well as the district court’s denial of Brown’s pre-trial motion to suppress evidence and statements, but remand for resentencing.
*815 BACKGROUND
The police received an anonymous tip that Brown would be arriving from St. Louis at a certain time with five ounces of “crack” cocaine. The caller described the vehicle that Brown would be driving, including its license number, and also identified the woman who would be accompanying Brown. The police previously had received similar tips concerning Brown. At the appointed hour, they waited along the highway in an unmarked vehicle until they spotted Brown’s car. Except for a few minor details, everything seemed consistent with the information that had been received.
Police followed Brown’s car, intending to stop it once backup units arrived, but he pulled off the highway into a gasoline station. From this point onward, the police version diverges sharply from that told by Brown and his companion. It is undisputed, however, that the police approached Brown, issued him a Miranda warning, and told him that they suspected he was transporting drugs. Although the police deny that Brown was in custody, they concede that they would not have let him drive away. Police searched Brown’s vehicle and found a small quantity of marijuana in a jacket on the front seat of the ear. After taking Brown and his companion to jail, a police canine unit searched the entire car including the engine compartment, and eventually discovered 48.70 grams of cocaine base hidden beneath the battery. Brown was then interviewed by officers. He admitted knowledge of the drugs and made statements aimed at exculpating his companion.
Brown was soon released from jail. The jury heard testimony that he continued transporting and distributing “crack” cocaine until he was re-arrested the following year.
PRETRIAL MOTION TO SUPPRESS EVIDENCE AND STATEMENTS
The district court found that although the police had a sufficient basis to stop the car, they did not actually do so, hence this was only an investigative stop pursuant to
Terry v. Ohio,
TRIAL
Brown was ordered to furnish a handwriting sample so that it could be compared to certain incriminating documents which allegedly were in his handwriting. He refused. At trial, the jury was informed of Brown’s refusal. Brown contends that this violated his Fifth Amendment privilege against self-incrimination. We disagree. A handwriting exemplar is non-testimonial.
Gilbert v. California,
We also hold that the district court did not abuse its discretion in denying Brown’s request for a continuance, at the close of the government’s case, so that his counsel could interview a prospective witness. Based upon the scant information that defense counsel provided to the court, it was very unlikely that this individual could provide relevant testimony, let alone evidence that might have affected the outcome of the trial.
SENTENCE
Brown contends the government failed to prove that he was distributing
*816
“crack” cocaine as opposed to some other form of cocaine base. We review for clear error the district court’s findings as to the identity of the drug, reversing only if we are left with a definite and firm conviction that a mistake has been made.
United States v. Covington,
During Brovim’s trial, a government chemist testified that the substance seized was “cocaine base.” However, this witness did not expressly state that the substance was “crack” cocaine and she appeared to be unfamiliar with the process for manufacturing crack. For purposes of the Sentencing Guidelines the term “cocaine base” is limited to the particular form of cocaine base known as “crack” and does not include certain other substances that a chemist would also classify as cocaine base.
See United States v. Montoya,
We nevertheless affirm the district court’s finding that Brown was distributing crack cocaine. While cocaine base can theoretically include substances other than crack,
see Montoya,
Brown also argues that because the penalty for crack is so much more severe than the penalty for other forms of cocaine,
3
the government must prove the identity of the drug by clear and convincing evidence rather than the preponderance standard applicable to other factual questions at sentencing. Like many of our sister circuits, we previously have at least acknowledged “the possibility that the preponderance standard the Court approved for garden variety sentencing determinations may fail to comport with due process where, as here, a sentencing enhancement factor becomes ‘a tail which wags the dog of the substantive offense.’ ”
United States v. Townley,
*817
In
Townley,
we did not decide this question because we concluded that the result in that case would be the same under either standard.
Townley,
Brown also challenges the district court’s finding that he was responsible for between 150 and 500 grams of crack. We will reverse the district court’s determination of the quantity of drugs only if it is clearly erroneous.
United States v. Alexander,
I believe that the evidence at trial established that the amount of cocaine base or crack would be 50 grams — more than 50 grams but less than 150 grams. So in that respect, I would differ with — not differ with the presentenee report, but I’m not going to bring in witnesses to testify to those amounts that would bring it over that amount.
So I would contend to the Court that the evidence at trial did support a finding that there were in excess of 50 grams but less than 150 grams....
(Sent. Tr. 11-12). Notwithstanding that concession, the district court entered a finding that Brown was responsible for 150 to 500 grams.
Although the district court was not bound by the government’s concession, the court did not articulate any reason for rejecting it, or even clearly state that the court was rejecting that concession. On this record, we have no assurance that the rejection was intentional rather than inadvertent. We previously have held that once a defendant objects to a factual allegation in the presentence report, the court must make (i) a finding as to the allegation, or (ii) a determination that no such finding is necessary because the matter controverted will not be taken into account in sentencing.
Covington,
In this case, the government did not introduce any evidence to prove that Brown was responsible for over 150 grams of crack, and further conceded that the testimony at trial was insufficient to establish that fact. Therefore, we hold that the district court clearly erred by finding that Brown was responsible for more than 150 grams of crack, and we remand for resentencing.
Brown’s remaining contentions will not detain us long. The district court did not err in denying Brown a two-level reduction for acceptance of responsibility. Ordinarily, a defendant who puts the government to its burden of proof at trial by denying the essential factual elements of guilt, is convicted, and only then admits guilt and expresses remorse, is not entitled to a reduction for acceptance of responsibility.
United States v. Amos,
The district court also acted properly by increasing Brown’s sentence four levels for being an organizer or leader of criminal activity involving five or more participants. A sentencing court’s determination of a participant’s role in the offense pursuant to U.S.S.G. § 3B1.1 is reviewed under the clearly erroneous standard.
United States v. Skorniak,
*818 CONCLUSION
We affirm Brown’s convictions as well as the district court’s denial of Brown’s pretrial motion to suppress evidence and statements. We reverse the district court’s finding that Brown was responsible for more than 150 grams of crack and remand for resentencing.
Affirmed.
Notes
. In
United States v. Kang,
. In Brown’s case, a finding that the controlled substance was crack rather than ordinary cocaine adds approximately twenty years to the duration of his sentence, or about a five-fold increase.
