A jury convicted Kelvin Ford of participating in the robbery of two New Jersey banks on June 11, 2003 and June 12, 2003. The District Court sentenced him to 460 months of incarceration for these offenses. He now appeals two issues relating to his conviction and sentence. 1 First, Ford asserts that the District Court abused its discretion in permitting the testimony of the Government’s shoeprint expert. Second, Ford challenges the application of the Career Offender provision in United States Sentencing Guideline § 4B 1.1(a).
I.
According to the evidence established at Ford’s trial, on June 11, 2003, Ford, Donald Johnson, and Christopher Howard robbed the Fleet Bank in Mays Landing, New Jersey, stealing $9,802. On June 12, 2003, the trio robbed the Commerce Bank in Somers Point, New Jersey, absconding with $10,330. The Government presented evidence that during the Fleet Bank robbery, Howard cased the bank, and Ford and Johnson committed the robbery and then fled to a getaway car driven by How *217 ard. The robbery of the Commerce Bank was executed in a similar fashion, except that Howard only cased the bank, Johnson alone committed the robbery, and Ford drove the getaway car. There is no dispute that as Johnson fled the Commerce Bank, Ford, who was driving out of a fast food restaurant, stopped to pick him up. Before Ford was able to collect Johnson, however, he hit another vehicle whose driver was able to identify Ford’s automobile. Ford’s car was later spotted by a police officer in Egg Harbor Township as it pulled into a car dealership parking lot. Ford and Johnson left the vehicle and fled on foot. While they hid, Ford used his cell phone to contact Howard. Ford and Johnson were seen running through a wooded area, and police pursued them, apprehending both. A search of Ford revealed that he had $2,967 in cash. The police recovered $7,376 from Johnson. The currency stolen from the Fleet Bank branch was not recovered.
In addition to the testimony of co-defendants Johnson and Howard that Ford had been involved in the Fleet Bank robbery, the Government presented evidence that three partial shoeprints lifted from the counter in the bank were similar to the type of imprints that would be made by the shoes that Ford was wearing when he was apprehended. The jury convicted Ford of both bank robberies.
At sentencing, the Government sought the application of the Career Offender provision to Ford on the basis of two prior convictions for crimes of violence. One of those crimes was an escape he attempted while incarcerated at Lorton Reformatory in Virginia. The District Court found Ford’s escape to be a crime of violence and agreed with the computation of his criminal history category as a VI under the Guidelines.
II.
We review the District Court’s decision for abuse of discretion.
Gen. Elec. Co. v. Joiner,
Gilkerson was permitted to testify that the characteristics of Ford’s shoes put them in the class of shoes that could have made the impression on the counter. Before admitting Gilkerson’s testimony, the
*218
District Court conducted a
Daubert
hearing. The two fundamental requirements of
Daubert
are (1) reliability and (2) relevance.
In particular, the District Court evaluated the “reliability of the methods and reliability of their application to the case at hand to determine ... whether there is a suitable fit between the proffered opinion and the facts of the case and, second, whether the opinion will be of assistance to the jury.” The Court found that there was general acceptance of shoeprint analysis in both the federal courts and the forensic community, the theory has been subject to peer review and publication, the potential error rate is known, 4 and there are standards and techniques commonly employed in the analysis. 5 The Court agreed that *219 Gilkerson followed the recognized techniques.
The District Court found that Gilker-son’s opinion that the class characteristic comparison showed similarity between Ford’s shoe and the print was an acceptable opinion for shoeprint experts to express under Daubert. The Court found that “although the latent prints were not complete, ... there is clearly sufficient underlying information to reliably express the careful opinion ... regarding the similarity of characteristics and the inability to rule out based upon any difference.”
The Court then turned to the assistance that Gilkerson’s testimony would provide the jury, and evaluated “whether it provides in a rehable way some probative piece of evidence that would be helpful to a lay jury in understanding the case and reaching a rehable conclusion.” The Court determined that it did, stating that “[wjhat he brings to.this that a lay jury does not is his knowledge of ... shoeprint and forensic comparison in general, [and] second, his ability to make the examination, including [making] the direct print from the shoes themselves for purposes of comparison and, third, his ability to overlay the direct print and the lifted print....”
By engaging in this evaluation, the District Court followed the gatekeeping process contemplated in
Daubert
and
Kumho.
The District Court assessed both the reliability and helpfulness or relevance concerns expressed in
Daubert.
With respect to reliability, the District Court heard Gilkerson’s explanation of his methodology and found that it sufficiently conformed to the
Daubert
factors. The Court’s relevance determination was also proper. As the Supreme Court explained, “Rule 702 further requires that the evidence or testimony ‘assist the trier of fact to understand the evidence or to determine a fact in issue.’ This condition goes primarily to relevance.”
Daubert,
Ford relies on
United States v. Ferreira,
III.
Ford also contests the District Court’s application of the Career Offender provision of the Sentencing Guidelines to him. U.S. Sentencing Guidelines Manual § 4B1.1 (2004). He asserts that the District Court erroneously treated his prior conviction for escape as a crime of violence. Ford recognizes that established Third Circuit case law in
United States v. Luster,
One of the facts that brought Ford within the scope of the Career Offender provision was that he was convicted of the crime of escape. We have already confirmed that every escape is a crime of violence for purposes of § 4B1.1 because of its serious potential to erupt into violence.
Luster,
*222 IV.
In conclusion, the District Court did not abuse its discretion by admitting the expert testimony regarding the shoeprint evidence. Nor did the Court err in applying the Career Offender provision of § 4B 1.1 to Ford on the basis of his prior conviction for escape. We will affirm the judgment of the District Court.
Notes
. The District Court had subject matter jurisdiction pursuant to 18 U.S.C. § 3231. This Court has jurisdiction over Ford's challenge to his conviction under 28 U.S.C. § 1291 and his sentence under 18 U.S.C. § 3742.
. Rule 702 provides that:
If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise, if (1) the testimony is based upon sufficient facts or data, (2) the testimony is the product of reliable principles and methods, and (3) the witness has applied the principles and methods reliably to the facts of the case.
Fed.R.Evid. 702.
. The defendant did not challenge Gilkerson’s qualifications.
. Courts have admitted shoeprint identification evidence for a long time. See generally Terrence F. Kiely, Forensic Evidence: Science and the Criminal Law 281-314 (2d ed.2006). However, the rate of error in shoeprint identifications has not been firmly established. In evaluating the expert testimony, the District Court stated that "[t]he potential error rate is known and it appears to be quite low, only dependent upon an error made by an examiner rather than an error underlying [the] theory.” Ford does not attack the admission of the evidence on the basis of a lack of a sufficient error rate for the field as a whole. His objections are to the method employed by the expert and to the lack of confidence expressed by the expert in his own conclusions.
. We note the distinction between the forensic identification sciences and the type of science typically at issue in
Daubert
cases. Expert testimony based on empirical science “does things like determining what substance something is (e.g., what is that white powder?) or measuring the quantity of something (e.g., how much alcohol is in the murder victim's blood?).” Michael J. Saks,
Banishing Ipse Dixit: The Impact of
Kumho Tire
on Forensic Identification Science,
57 Wash. & Lee L. Rev. 879, 881 (2000). Forensic identification science has a different objective. Forensic identification evidence serves to "connect a crime scene object or mark to the one and only source of that object or mark.”
Id.
The reliability of these sciences rests upon the experience and observational powers of their practitioners.
See, e.g.,
Kiely,
supra
note 4, at 293 ("The value of any such impressions depends on its integrity and the preservation methods used by police and forensic technicians.”). While a strict application of the
Daubert
factors to forensic identification sciences might
*219
be a fruitless exercise, due to the inherently experiential nature of this type of expertise, the District Court will be in the best position to make this determination.
Kumho
instructs us that “relevant reliability concerns may focus upon personal knowledge or experience,”
. The discussion of "fit” in Paoli indicated that the standard for analyzing the fit of an expert's analysis to the case at hand is "not that high,” but is "higher than bare relevance.” Id. at 745. That statement remains sound law inasmuch as it requires that experts who purport to apply their principles and methods to the facts of the .case do so in a reliable manner. The Paoli Court’s discussion of fit requires that expert opinions that apply principles or methods to the facts of the case and produce conclusions that have a debatable connection to the question in issue be predicated on a reliable methodology. Id. This is the critical import of Paoli’s discussion of fit within the context of reliability. Outside *220 of this relatively narrow setting, ‘'fit” is a relevance concern.
Following
Paoli,
this Court reiterated the helpfulness discussion in
Daubert,
and noted the Supreme Court's explanation that "[f]it is not always obvious, and scientific validity for one purpose is not necessarily validity for other unrelated purposes.”
In re TMI Litigation,
In its reconsideration of Daubert on remand, the Ninth Circuit explained that
[t]he Supreme Court recognized that the “fit” requirement “goes primarily to relevance,” but it obviously did not intend the second prong of Rule 702 to be merely a reiteration of the general relevancy requirement of Rule 402. In elucidating the “fit” requirement, the Supreme Court noted that scientific expert testimony carries special dangers to the fact-finding process because it " 'can be both powerful and quite misleading because of the difficulty in evaluating it.' ” Federal judges must therefore exclude proffered scientific evidence under Rules 702 and 403 unless they are convinced that it speaks clearly and directly to an issue in dispute in the case, and that it will not mislead the jury.
Daubert v. Merrell Dow Pharm., Inc.,
The question of fit here is not debatable, as it was in
Paoli. See Paoli,
.Indeed, due to the inherently closed factual universe created by the Federal Rules of Evidence and the partisan decisions of litigants in selecting experts, it is desirable to have expert witnesses express their degree of confidence accurately. See Samuel R. Gross and Jennifer L. Mnookin, Expert Information and Expert Evidence: A Preliminary Taxonomy, 34 Setonhall L. Rev. 141, 143-44 (2003) (“[T]he degree of certainty expressed by the witness should reflect both knowledge and its limits, both what is known and what is not.”); id. at 170-71 ("Normally, a witness’s level of confidence is grist for the adversarial mill .... ”); id. at 186. By confining the jury's considerations to the facts and opinions presented to them at trial, the rules circumscribe the amount of available information. Consequently, especially where expert testimony is concerned, the Rules may create an artificially polarized world, leaving the jury to evaluate the often contradictory testimony of dueling experts. Because the parties are apt to select experts based on their ability to provide highly favorable testimony, it is preferable that, where there is cause for doubt as to a particular opinion, the experts make clear any uncertainty.
. In fact, the case law of almost all of our sister courts of appeals also stands in opposition to Ford's argument.
See, e.g., United States
v.
Adewani,
. Ford also argues that a categorical approach to whether a crime is properly considered to be a crime of violence is inappropriate. We reject this argument. In support of his contention that individualized fact finding is proper, Ford cites to
United States v. Kenney,
