Pennsyvlania v. Walker (majority)
Annotate this Case
This appeal stemmed from two armed robberies which occurred within two weeks of each other in October 2005 in Philadelphia. In both incidents, University students were approached by a man alleged to be Appellant, Benjamin Walker. The assailant drew a handgun, and demanded money. In this appeal by allowance the Supreme Court addressed the question of whether a trial court may, in its discretion, permit expert testimony in the area of eyewitness identification, and, in doing so, the Court reconsidered its then-current decisional law which absolutely banned such expert testimony. The Court held that, in Pennsylvania, the admission of expert testimony regarding eyewitness identification is no longer per se impermissible, and joined the majority of jurisdictions which leave the admissibility of such expert testimony to the discretion of the trial court. Thus, the order of the Superior Court was reversed, and the case remanded back to the trial court for reconsideration of such expert testimony.
Some case metadata and case summaries were written with the help of AI, which can produce inaccuracies. You should read the full case before relying on it for legal research purposes.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.