AIDA M. DELGADO-COLON, Chief Judge.
During trial on the afternoon of March 7, 2013, Lashaun Casey ("defendant") made an oral motion requesting that the Court limit the testimony of the government's firearm expert, Edward Pérez-Benítez ("Mr. Pérez") based upon several district court opinions restricting ballistics evidence based upon studies conducted by the National Academy of Science ("the 2008 NAS report" and "the 2009 NAS report").
Outside the jury's presence, the Court held a Daubert
On March 8, 2013, the government filed a written opposition to defendant's oral motion, contending that Mr. Pérez' testimony as a ballistics and firearm expert was admissible under Daubert and applicable case law.
Federal Rule of Evidence 702 ("Rule 702") sets forth the guidelines for admissibility of expert testimony. Fed.R.Evid. 702. Rule 702 sets forth three requirements for expert testimony to be admissible. Id. First, the testimony must be "based upon sufficient facts or data." Id. Second, it must be "the product of reliable principles and methods." Id. Third, the expert witness must have "applied the principles and methods reliable to the facts of the case." Id.
By like token, the Daubert court set forth five non-exclusive factors for trial courts to consider when evaluating the reliability of proposed expert testimony. 509 U.S. at 593-95, 113 S.Ct. 2786; see also United States v. Valdivia, 680 F.3d 33, 57 (1st Cir.2012). First, the court should consider "whether the expert's technique or theory can be or has been tested." Valdivia, 680 F.3d at 57 (citing Daubert, 509 U.S. at 593-95, 113 S.Ct. 2786). Second, the court should ponder "whether the technique or theory has been subject to peer review and publication." Id. Third, the court should determine "what the known or potential rate of error of the technique or theory is when applied." Id. Fourth, the court should consider "whether the expert maintained standards or controls." Id. Fifth, the court should review "whether the technique or theory has been generally accepted in the scientific community." Id.
Here, defendant does not challenge Mr. Pérez' qualifications, methodology or analysis.
First, the Court notes that none of the cases cited by defendant are binding precedent for this Court as they are all the opinions of sister district courts throughout the nation. Second, the Court notes that each of the cases cited by defendant are distinguishable from the case at bar.
In Willock, the trial court limited testimony regarding the expert's conclusions in part because the expert's conclusions "relied on an examination of a Baltimore City examiner, whose qualifications, proficiency and adherence to proper methods are unknown." 696 F.Supp.2d at 546. Such is not the case here as Mr. Pérez qualifications are unquestionable and has conducted the tests and examinations underlying his testimony himself. See
In Taylor, the expert conducted a modified approach to the AFTE Theory, called CMS. 663 F.Supp.2d at 1178. Here, Mr. Pérez has applied the AFTE Theory, conducting a side-by-side comparative microscopic examination of the projectile found at the Isleta Marina Parking Lot and a test round fired by Mr. Pérez. See
Finally, in Glynn, upon re-trial, the trial court restricted the ballistics expert's testimony after the government failed to produce their rebuttal witness on the matter, a Supervisory Physical Scientist at the Federal Bureau of Investigation. 578 F.Supp.2d at 569 n. 2. Here, the United States has produced the sworn statement of the Chairman of the group that produced the 2008 NAS report.
Dr. Rolph's statements greatly undermine the portions of the 2008 NAS report upon which defendant and the Glynn, Taylor and Willock courts rely. Moreover, defendant's employment of an expert witness who employed the AFTE Theory further ilegitimizes his current, untimely objection