Debunking the 10 mph speed buffer: Why one state could lead to more tickets nationwide

RALEIGH, N.C. — How fast can you go on the highway without attracting the attention of police? Anything under 10 miles per hour over the speed limit is okay, right?

Drive anywhere from 1 to 9 miles per hour over the limit and you'll avoid the flashing lights, the theory goes.

Many people believe that such a 'buffer law' exists, or is an unwritten rule among police.

Not true.

Some states have laws requiring automated speed cameras to have such a buffer, but officers on the road have no such limitations.

The North Carolina Department of Transportation is about to crack down on this myth, according to WTVD, and other states could soon follow.

The governor’s highway safety program is ramping up what’s being called “Obey the Sign or Pay the Fine” speeding enforcement crackdown.

Law enforcement says they’ll target and ticket anyone driving above the posted speed limit - even one mile over - beginning Thursday.

North Carolina is the latest state to take the lead in debunking the myth.

If the campaign is successful, it's likely other states could announce similar safety campaigns.