Traffic stop turns into nightmare

MARYLAND - When people become police officers, they always know that they could wind up in harms way, but Maryland State Trooper David Avila probably never thought that he would be hit by a tractor trailer on the shoulder of I-10 in Western Maryland.

In the video taken from the dashboard camera in his police car, you can see him speaking to the driver of an SUV that he pulled over on to the right shoulder.

Seconds later, you can see a tractor trailer driving too close to the shoulder, slams right into his police cat and then into him.

Somehow Trooper Avila managed to get to the guard rail and radio for help.

He now has an injured shoulder, back and legs, and suffers from post-concussive syndrome which makes it hard for him to balance.

Trooper Avila says he's sharing his story to bring awareness to the Move Over Law that authorities say could have prevented his accident.

The law requires drivers to drop their speed to 10 miles under the limit and then pull over a lane when they see any kind of emergency vehicle.