Com., Dept. of Transp. v. O'CONNELL , 521 Pa. 242 ( 1989 )
Com., Dept. of Transp. v. Renwick , 543 Pa. 122 ( 1996 )
McDonald v. Commonwealth, Department of Transportation, Bureau of Driver Licensing , 708 A.2d 154 ( 1998 )
Miranda v. Arizona , 86 S. Ct. 1602 ( 1966 )