Knoxville Police Sergeant Sam Henard responds to many different calls everyday and unfortunately he's had his own fair share of close calls.
"I've lost a mirror before on a traffic stop and I've had some pretty close calls where I was standing next to a car and had to jump out of the way," Sgt. Henard said.
He said some people are simply not paying attention when he's pulled over on the side of the interstate.
Over the past decade, the fourth leading cause of death for law enforcement officers are accidents where officers were struck by a vehicle, according to the National Law Enforcement Officers Memorial Fund.
"It's nonstop. Every crash that we are working, every time we are on the side of the road it's nonstop," he added.
Henard said these drivers are breaking the "Move Over" law.
"We like to call it the common sense law because that's exactly what it is," he emphasized.
The law started in 2006 and states when you approach an emergency vehicle on the shoulder or the side of the road, you have to move over.
If you can't move over safely, then you have to slow down to a safe speed which means 55 miles per hour should be 45 miles per hour.
Wednesday night, Sgt. Henard said dozens of cars were too close for comfort.
"There wasn't a lot of traffic out so there was more than enough time and space and nobody was moving over. Dozens and dozens and dozens of cars were passing us at a high rate of speed without moving over," he said.
Henard tweeted a video to share the message, a simple lane change can save a life.
"People really started to realize how scary it is and how close they are to the people," he said after hundreds of retweets and comments about the video.
As a sergeant, Henard also admitted while the law helps to protect people, it can be difficult to enforce.
"It's troubling to us because we know how bad it is and it's just so hard to enforce and we are busy dealing with other things," Henard said.
KPD officers have ticketed people for violating the law. The fine can be up to $500 and 30 days in jail.
As Henard said, killing a first responder is much worse.
"If you hit someone you are looking at reckless homicide charges and that could ruin your entire life," he added.