LONDON, Ky. (FOX 56) — Authorities hope a camera the size of a cell phone will help make bus stops safer in Laurel County.

The Laurel County Sheriff’s Office said the cameras will be turned on and begin recording when motion is detected during a bus pick-up or drop-off.

It is illegal for drivers to pass a school bus when the stop arm is activated.

“Student safety is the number one priority for Laurel County Schools. The Laurel County Schools Police Department will be working with London Police Department and Laurel County Sheriff’s Office to ensure drivers obey the law,” the office said in a news release.

The sheriff’s department anticipates nearly 9,000 students will return to school on Thursday in Laurel County and encourages drivers to prepare for possible delays related to the change in traffic.