Three drug drivers have been caught following a police operation along the Eyre Highway last week.
On Thursday, police from the Far North and Eyre West Local Service Areas conducted vehicle inspections along the highway at Lincoln Gap, following recent fatal crashes in the area.
678 drivers were tested for alcohol and drugs, with three returning positive results for drugs.
49 traffic expiations and 37 vehicle defects were issued.
Photo: Eyre Peninsula Broadcasters