LOUISVILLE, Ky. (WDRB) -- Four Jefferson County Public Schools bus drivers have received traffic violations since February, including drivers who were weaving in and out of traffic and wearing ear buds.

In March, as part of a WDRB investigation, a radar gun showed 30 school bus drivers, mostly for JCPS, breaking the law by speeding at least 10 miles over the limit. That was up from about 20 buses that was clocked in November.

Since then, JCPS records show that none of those drivers were cited for speeding or other misconduct. However, four drivers have gotten into trouble since February. The district only launches investigations after getting a specific complaint.

In February, someone reported a driver for swerving in and out of traffic around 7 a.m. on a school day. JCPS said it pulled video from the bus, which showed the driver was driving one-handed. In her other hand, she had paperwork.

In April, JCPS admits a driver was speeding on Hurstbourne Parkway. But in the above document, the district wouldn't say just how fast she was going.

In March, the district said bus camera video showed a driver using ear buds while behind the wheel. Documents show she's been in trouble several other times before, including for using a cell phone on the bus.

And in February, JCPS cited a driver for opening the door while the bus was moving before several stops.

JCPS is looking into the bus numbers for the four citations. A district spokesperson said she can't pull a location for the swerving incident because it isn't included in the paperwork.

The district added that all of its drivers they are "required to comply with the law" or face being fired.

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