Montgomery CountyBLACKSBURG, Va. (AP) _ A former Blacksburg elementary school principal is working again after being cleared of an assault charge. The Roanoke Times reports that Carol Kahler is now assigned to administrative duties at the Montgomery County schools’ central office. School division spokeswoman says Kahler’s salary is the same as it was when she was Gilbert Linkous Elementary School principal _ $85,113.The 56-year-old Kahler was placed on administrative leave in March after she was accused of slapping a special needs student. A judge dismissed an assault charge on July 17, ruling that he could not determine exactly what happened. State law and county policy requires reinstatement of a suspended public school employee after acquittal on criminal charges. A new principal was hired before the charge was dropped.