A POLICE operation on the Western Highway this week netted more than $120,000 in unpaid fines for the sheriff's office.
Horsham uniformed police officers, highway patrol members and five sheriffs ran an operation in Dimboola Road and Stawell Road, Horsham, on Tuesday and Wednesday.
The operation used automatic number plate recognition technology and the Victoria Police dog squad.
The campaign included vehicle searches, licence checks, random breath tests and preliminary oral fluid drug tests.
Members checked 3721 vehicles.
One Horsham female driver, 39, returned a positive preliminary oral fluid test for an illicit drug.
Members also issued warrants for the recovery of unpaid fines, worth $120,870. The amount included one male driver who had more than $12,000 in outstanding fines.
Members issued 34 driver licence suspension notices for unpaid fines.
Other driving offences detected included 12 unregistered vehicles, three unlicensed drivers and four unroadworthy vehicles which police issued with defect notices.
Officers also caught a speeding driver on the Western Highway at Drung, who was clocked at 154 kilometres an hour in a 100kmh zone.
Acting Senior Sergeant Dave Ellis said the operation focused on outstanding warrants from the sheriff's department, unregistered vehicles and unlicensed drivers.