A DRIVER WAS ARRESTED AFTER RUNNING OVER,, AND SERIOUSLY INJURING, A PEDESTRIAN THIS AFTERNOON IN SALINAS. THE JUST BEFORE 5 P.M. ACCIDENT OCCURRED ON THE 300 BLOCK OF WILLIAMS ROAD. THE INJURED PEDESTRIAN, WHO WAS A CHILD, WAS TRANSPORTED TO AN AREA HOSPITAL. THE DRIVER WAS CAUGHT A SHORT TIME LATER AFTER HE RAN HIS S.U.V. INTO A C.H.P. PATROL CAR ON ZABALA ROAD. HE WAS BOOKED INTO MONTEREY COUNTY JAIL.