230 F.3d 862 (6th Cir. 2000)
United States of America, Plaintiff-Appellee,v.James C. Quinn, Defendant-Appellant.
No. 99-5403
UNITED STATES COURT OF APPEALS FOR THE SIXTH CIRCUIT
Submitted: September 22, 2000Decided and Filed: October 25, 2000

Appeal from the United States District Court for the Western District of Kentucky at Louisville.  No. 98-00085--Charles R. Simpson III, Chief District Judge.
Terry M. Cushing, James A. Earhart, ASSISTANT UNITED STATES ATTORNEYS, Louisville, Kentucky, for Appellee.
Jamie L. Haworth, Patrick J. Bouldin, ASSISTANT FEDERAL PUBLIC DEFENDER, Louisville, Kentucky, for Appellant.
Before: MERRITT, KENNEDY, and GILMAN, Circuit Judges.
OPINION
RONALD LEE GILMAN, Circuit Judge.


1
James C. Quinn was convicted of various drug-trafficking and  firearm-possession offenses and was sentenced to 184 months of incarceration. He appeals his conviction, contending that  the district court abused its discretion in (1) forcing him to waste a peremptory challenge on a potential juror who should  have been dismissed for cause, (2) allowing the arresting police officer to give what Quinn argues to be expert testimony  without proper notice, (3) excludingthe testimony of a proferred defense expert on fingerprinting, and (4) permitting the  arresting officer to testify that Quinn had been apprehended in what was known to be a high-crime area. For the reasons set  forth below, we AFFIRM Quinn's conviction.

I. BACKGROUND
A. Factual background

2
At approximately 1:00 a.m. on May 23, 1993, three Louisville police officers observed that Quinn had stopped his car in  the middle of a street in what was known to be a high-crime area. Two pedestrians were speaking with Quinn through the  open passenger-side window. Both pedestrians entered the car as soon as they saw the police officers, and the car began to  leave. Observing that the car's license plate was not illuminated, the officers pulled the car over.


3
When Officer Lawrence Cushman first approached the driver's side window, he smelled the odor of marijuana  emanating from the car. Officer Cushman ordered Quinn out of the car and requested that he produce identification and  proof of insurance. Quinn produced identification, but he told Officer Cushman that he was uninsured. Officer Cushman  asked Quinn why he was there. Quinn seemed nervous, and the officers believed that he was gauging whether he would be  able to flee. Officer Cushman then arrested Quinn for violating the Kentucky statute that requires all drivers to possess  proof of insurance.


4
The police subsequently searched the car and turned up roughly seventeen grams of crack cocaine and a loaded .32  caliber pistol. Both the drugs and the gun were located in a panel opening inside the driver-side door. Two-and-a-half  weeks later, the police searched Quinn's residence in Louisville. They found a loaded .38 caliber revolver and ammunition  for both .38 and .32 caliber firearms in Quinn's bedroom. Some of the .32 caliber ammunition had the same manufacturer  as the ammunition found in the door panel of Quinn's car.

B. Trial background

5
Quinn was convicted by a jury for possession of more than five grams of crack cocaine in violation of 21 U.S.C. § 844,  possession of crack cocaine with the intent to distribute in violation of 21 U.S.C. § 841(a)(1), carrying a firearm during and  in relation to a drug trafficking crime in violation of 18 U.S.C. § 924(c), and two counts of possessing a firearm as a  convicted felon in violation of 18 U.S.C. §§ 924(g)(1) & 924(a)(2). He was sentenced to 184 months' imprisonment, the  length owing in significant part to Quinn's substantial criminal history and to the § 924(c) conviction, which carries with it  a five-year minimum sentence that must be imposed consecutively.


6
Quinn argues on appeal that the district court abused its discretion in (1) declining to strike for cause one of the potential  jurors, (2) permitting the investigating officer to testify that, in his experience, the quantity of crack cocaine recovered from  Quinn's car was consistent with distribution as opposed to personal use, (3) excluding the testimony of a proffered expert  witness for the defense, and (4) permitting one of the police officers to testify that the events leading up to Quinn's arrest  took place in a high-crime area.


7
During voir dire, one of the potential jurors, Juror #35, testified that she had worked with "undercover police" and had  "several people put away" for using or distributing illegal drugs, including crack cocaine, in her previous job as a property  manager for several Maryland apartment complexes. She also testified that she had been a witness in one federal  drug-prosecution case and had been the foreperson of the jury in another.


8
Quinn's attorney moved to strike Juror #35 from the jury for cause, arguing that her background and initial equivocal  answer ("probably") to the question ofwhether she could judge the case solely on the evidence presented demonstrated a  pro-government bias. The district court denied the motion, reasoning that Juror #35, by subsequently answering the same  question with an unequivocal "yes," indicated that she could set aside her past experiences. Quinn's attorney eventually  used one of his eleven peremptory challenges to remove her from the jury.


9
During the trial, Officer Cushman testified that the neighborhood where Quinn was arrested was a "high drugs and  trafficking" area. Officer Cushman also testified that (1)the seventeen grams of crack cocaine found in Quinn's car were, in  Officer Cushman's experience, more consistent with distribution than personal use, (2) the total street value of the crack  cocaine was approximately $800 to $1,200, and (3) he did not have the gun that was removed from Quinn's car tested for  fingerprints because it was found in a wet paper bag, which Officer Cushman thought would prevent any fingerprints from  being successfully recovered. Quinn's counsel objected to this testimony on the basis that he had not been previously  notified of this "expert" testimony despite having requested disclosure of all the government's expert witnesses prior to the  trial.


10
After Officer Cushman testified, the government called Special Agent George Huffman with the Bureau of Alcohol, Tobacco, and Firearms to establish that gun was in fact tested for fingerprints, but that none were found on the weapon. In  response, Quinn's counsel sought to call an expert witness in fingerprinting technology to testify that fingerprints can be  obtained from items that have been stored in wet paper bags. The trial court excluded this testimony as irrelevant, because  the gun in question was actually tested for fingerprints.

II. ANALYSIS
A. Challenge to potential juror

11
Quinn argues on appeal that Juror #35 had demonstrated that she could not reasonably be expected to be impartial. He  claims that the district court should have removed her for cause rather than force Quinn to use up one of his peremptory  challenges. The Supreme Court recently foreclosed this argument by holding that "a defendant's exercise of peremptory  challenges . . . is not denied or impaired when the defendant chooses to use a peremptory challenge to remove a juror who  should have been excused for cause." United States v. Martinez-Salazar, 120 S. Ct. 774, 782 (2000) (finding no  constitutional violations when defendant was able to strike a juror who should have been removed for cause).


12
In addition, Quinn had no complaints about the individual jurors who actually decided the case. He thus failed to  establish that, as a consequence of having to use an extra peremptory challenge, he had an insufficient number left to  remove all the jurors that he wished to remove. See Martinez-Salazar, 120 S. Ct. at 783 (Souter, J., concurring) (suggesting  that a district judge might be required to grant an additional peremptory challenge to a defendant who would have used all  his peremptory challenges for noncurative purposes had the defendant not been required to use a peremptory challenge to  remove a juror who should have been stricken for cause).


13
By removing Juror #35, Quinn exercised his peremptory challenge in the manner that it was intended to be used--to  assure his right to an impartial jury. See, e.g., United States v. Giacalone, 588 F.2d 1158, 1164 (6th Cir. 1978) (observing  that peremptory challenges are not constitutionally required, but rather provide a "cushion" of additional protection for the  right of defendants to be judged by impartial juries). Quinn was confronted with a potential juror who, in Quinn's opinion, should have been removed from the jury. Quinn removed her. The system worked precisely as intended. See, e.g., Martinez-Salazar,528 U.S. at ___, 120 S. Ct. at 777 (concluding that when a potential juror should have been excused for cause but is not,  the defendant "has not been deprived of any rule-based or constitutional right" if he "elects to cure [the] error by exercising  a peremptory challenge, and is subsequently convicted by a jury on which no biased juror sat"). Under these circumstances,  we do not need to pass on the merits of whether the district court was required to dismiss Juror #35 for cause.

B. Expert testimony of Officer Cushman

14
Quinn next argues that the government violated Rule 16 of the Federal Rules of Criminal Procedure by failing to notify  him that Officer Cushman would testify about drug sales and fingerprint testing. Such testimony, Quinn claims, constituted  expert testimony to which he was entitled to advance notice by the government.


15
We will not set aside a district court's discovery rulings unless we find an abuse of discretion. See United States v.  Bartle, 835 F.2d 646 (6th Cir. 1987) (finding that the district court did not abuse its discretion by rejecting the defendant's  request to exclude evidence in violation of a discovery order when admitting the evidence would cause little prejudice).  Here, the district court had reasonable grounds to admit both the drug and fingerprint testimony. As the district court  correctly observed, it is difficult to imagine that Quinn's counsel, an experienced attorney, would fail to realize that the  government would offer testimony that the amount of crack cocaine found in Quinn's car was more consistent with  distribution than with possession for personal use.


16
Regarding the fingerprint testing, the fact that Quinn's counsel himself brought up the subject at trial during  cross-examination excuses the government's failure to alert Quinn that Officer Cushman would testify that he did not test  the gun found in Quinn's car for fingerprints because of its wet condition. The purpose behind defense counsel's  questioning was apparently to show that the police were sloppy, that fingerprints can in fact be lifted from a gun found in a  wet paper bag, and that fingerprints of someone other than Quinn might have been found on the gun if only the police had  checked. To sever this chain of inferences, the government called to the stand a special agent of the Bureau of Alcohol,  Tobacco, and Firearms, who testified that the gun, as well as the packaging on the drugs found in Quinn's car, actually had  been checked for fingerprints, but none had been found.


17
Quinn also argues that the government was required to provide him with formal notice that it was planning on having  Officer Cushman testify about the drug trade in Louisville. The government responds by pointing out that Quinn did not  seek a continuance, and that he failed to demonstrate that the absence of notice resulted in any prejudice. See Bartle, 835  F.2d at 649-50 (agreeing that the defendant's failure to seek a recess or a continuance supported the district court's rejection  of a defendant's request to suppress evidence that was not timely disclosed); United States v. DeWeese, 632 F.2d 1267,  1272-73 (5th Cir. 1980) (declining to reverse a conviction where the government failed to timely disclose to the defense the  fact that a given expert witness would testify, because the defendant failed to demonstrate that the nondisclosure caused any  prejudice). Although Quinn argues that he "could have very likely discredited [Officer Cushman's] testimony" regarding  drug trafficking "and/or presented expert testimony to rebut this evidence," he offers no suggestion of how he would have  done so. In light of Quinn's failure to seek a continuance or to demonstrate prejudice, we conclude that the district court did  not abuse its discretion by allowing Officer Cushman to testify about the drug trade.


18
Quinn further claims that because he was incarcerated throughout trial, the prosecution's alleged disclosure violationsrendered it unfair to require him to request a continuance, because granting one would have prolonged his incarceration. He  argues that "such a situation is blatantly unfair as it creates a no lose situation for the prosecution, and a no win situation for  the defense." Quinn's proposal to exclude the testimony, however, would create a no-lose situation for the defense.  Moreover, the range of remedies set forth in Rule 16 is not so limited. See Fed. R. Crim. P. 16(d)(2) ("If . . . a party has  failed to comply with this rule, the court may order such party to permit the discovery or inspection, grant a continuance, or  prohibit the party from introducing evidence not disclosed, or it may enter such other order as it deems just under the  circumstances."). We thus find no merit to Quinn's "unfairness" argument.

C. Expert testimony of George Elder

19
In a related argument, Quinn claims that the district court abused its discretion by excluding the testimony of George  Elder, an expert witness in fingerprinting technology. He argues that the expert would have testified that fingerprints can be  extracted from items that have been placed in wet paper bags.


20
If the expert's proffered testimony is correct, then it would appear that Officer Cushman is not the world's foremost  authority on fingerprinting. But even if that is so, the firearm in question actually had been checked for fingerprints by  Special Agent Hoffman, and none were found. There is no suggestion that the expert was going to testify either that Officer  Cushman's knowledge about fingerprinting was so deficient that Cushman might have wiped fingerprints off the gun by  accident, or that the method by which the authorities stored and tested the gun for fingerprints was otherwise defective.


21
Elder's testimony would thus have been extrinsic evidence used to impeach a witness on an irrelevant collateral matter,  which is inadmissible. See United States v. Markarian, 967 F.2d 1098, 1102 (6th Cir. 1992) (prohibiting the contradiction  of collateral matters by extrinsic evidence, but permitting rebuttal testimony about a witness's drug trade when the witness's  repeated and sweeping denials that he never sold controlled substances made his knowledge of drugs a central issue in  determining the truthfulness of his testimony). We thus conclude that the district court did not abuse its discretion in  excluding the proferred testimony.


22
D. Testimony about the neighborhood's status as a high drug-trafficking area


23
Finally, Quinn challenges the district court's decision to admit Officer Cushman's testimony that the neighborhood  where Quinn was arrested was a high drug-trafficking area. Quinn argues that the comment was gratuitous, serving no  purpose other than to suggest to the jury that because he was arrested in an area known for drug-trafficking, he must have  been up to no good. The district court's evidentiary ruling, however, may be disturbed only if we were to conclude that the  district court abused its discretion in holding that the probative value of this evidence was not "substantially outweigh[ed]  by the danger of unfair prejudice, confusion of the issues, or misleading the jury . . . ." Fed. R. Evid. 403. This discretion in  determining the proper balance is interpreted broadly. See United States v. Feinman, 930 F.2d 495, 499 (6th Cir. 1991)  (upholding the trial court's decision to allow testimony about the defendant's prior involvement in marijuana distribution  because the testimony was highly probative of the defendant's guilt or innocence, and the prejudice was mitigated by  limiting jury instructions).


24
The testimony involving the location of the arrest was limited in its scope, and Quinn's counsel effectively  cross-examined Officer Cushman concerning the legitimate reasons why Quinn might have been in the neighborhood.  Furthermore, the government maintains that it offeredthis testimony simply to provide preliminary background information  regarding why the arresting officers acted as they did, rather than to suggest anything about Quinn. Although the relevance  of the nature of the neighborhood is marginal, we cannot say that the district court abused its discretion in allowing the  testimony. Any possible error, moreover, was harmless in light of the overwhelming evidence against Quinn. See id. at 498  (finding that, given the force of other evidence against the defendant, improper reference to the defendant's "200 pound"  drug deal was harmless).

III. CONCLUSION

25
For all of the reasons set forth above, we AFFIRM Quinn's conviction.

