Commonwealth v. Walker
Pennsylvania Supreme Court
92 A.3d 766 (2014)
Relevant factsFree
Benjamin Walker (defendant) was convicted of armed robberies based on four eyewitness identifications after the trial court rejected his proffered expert testimony challenging the reliability of such identifications, following Pennsylvania's traditional categorical exclusion of such expert evidence. Walker appealed, arguing the exclusion was error.
IssueFree
Whether almost all jurisdictions allow expert testimony challenging the reliability of eyewitness identifications.