Story By: Les Steed, Sub-Editor: Marija Stojkoska, Agency:  Newsflash

This is the moment US cops use a new device known as a Grappler Bumper to immobilise a motorist trying to smash a woman driver off the road.

The terrified woman had called police to say that she was driving a Ford Mustang that was being attacked by another driver as she travelled eastbound down the I-10 near Tucson.

The terrified woman told police “she’s hitting me, she’s hitting me” several times during the call at 7:51pm on Tuesday (22nd September).

Sheriff deputies were quickly on the scene where they witnessed first hand how the motorist complained about was repeatedly smashing into the Ford Mustang in East Valley, Arizona.

The aggressive driver, later identified as Amy Sharie Pierce, 39, still continued bashing at the victim’s tail in spite of the police sirens and lights all around her.

Fearing that the could soon be a serious accident, they decided to deploy the Grappler Bumper device, which was lowered down and inserted under the rear left wheel of the attacking vehicle.

The device then instantly deployed and locked the rear wheel, causing it stop near Sun Tan Loop 202.

In the video Pierce’s car is seen swerving out right across the highway and swinging back left across the road before gradually coming to a stop.

She was then filmed getting out of the car and laying on the ground before being cuffed by officers.

Pierce was later booked into the Maricopa County Jail on charges including criminal damage, endangerment of another person, unlawful flight and aggravated assault with a deadly weapon.

The victim was uninjured during the incident and managed to get away safely.

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