Police caught 40 drink and drug drivers during a major road policing operation on the Princes Freeway.
Operation Leviathan, which was conducted over Friday 14 November Saturday 15 November, involved police conducting high volume alcohol and drug testing on the Princes Freeway at Altona, targeting impaired drivers.
Police conducted 3998 preliminary breath tests, with 40 caught exceeding the alcohol limit.
Among the 40 drivers were two returned the highest readings of .136 and .170, according to police.
Police also detected five unauthorised drivers and impounded 20 cars over the two nights.
Police said a 16-year-old male unlicenced driver also entered the operation zone and had his vehicle searched.
A machete and a small amount of drugs, according to police.
He is expected to be charged on summons with drugs, weapons and traffic offences.
Operation Leviathan was conducted by North West Metro Division Highway Patrol members, with support from uniform police and Road Policing Drug and Alcohol Section.
Victoria Police said it will continue to conduct several major road policing operations targeting impaired drivers over the coming months, with November and December historically the worst months for drink and drug driving detections.
