Pennsylvania State Police said a traffic stop in Chambersburg, Franklin County, led to a violent struggle and the tasing of the suspect. Charging documents show that 39-year-old Robert Sprow was pulled over Friday for what troopers said was an expired registration. During the stop, investigators said troopers noticed signs of impairment and found drugs and pieces of drug paraphernalia inside the car. Police said Sprow performed field sobriety tests, then tried to run when troopers moved to arrest him. Investigators said he resisted, was tased, and bit two troopers during the struggle. One trooper was bitten several times, while another suffered minor cuts and abrasions. Sprow faces several charges.

Pennsylvania State Police said a traffic stop in Chambersburg, Franklin County, led to a violent struggle and the tasing of the suspect.

Charging documents show that 39-year-old Robert Sprow was pulled over Friday for what troopers said was an expired registration.

During the stop, investigators said troopers noticed signs of impairment and found drugs and pieces of drug paraphernalia inside the car.

Police said Sprow performed field sobriety tests, then tried to run when troopers moved to arrest him.

Investigators said he resisted, was tased, and bit two troopers during the struggle.

One trooper was bitten several times, while another suffered minor cuts and abrasions.

Sprow faces several charges.