There are rulings by the PA Supreme Court in at least 3 cases:
Agnew v Dupler 717 A.2d 519, 523 (PA 1998)
Kelly v. Borough of Carslile, 622 F.3d 248 (3d. Cir. 2010)
Com. v. Henlen, 522 Pa. 514, 564 A.2d 905 (1989)
in which the court has held that a police officer in the performance of...