Speeding drivers from interstate and overseas and drug drivers are the biggest concerns of the officer in charge of Horsham Highway Patrol.
Sergeant Dale McIvor's comments come as the state road toll remains well above what it was last year.
As of Thursday, 147 people had died on Victoria's roads - including two in the West Wimmera Shire and two in Ararat Rural City.
Sergeant McIvor, who has been in charge at the Horsham unit for several months, said his team and colleagues in surrounding divisions were working hard to curb the road toll.
"There is no greater deterrent than a visible police presence," he said.
"In my role I try to get as many police units on the road (and) in marked vehicles as I can. We've increased the number of members that do oral fluid testing for drug driving, as well as drink driving, but unfortunately with the tyranny of distance in our region, we have quite significant roads to police and our resources are such that we can't be everywhere at all times.
"We are getting greater numbers of people drug driving, which is our bigger concern at present."
Horsham Highway Patrol covers an area between Dadswells Bridge, Cherrypool, areas north of Horsham and west to the South Australia border.
"With respect to drink driving, we're not getting the same amount of offenders we were 10 years ago," he said. "So I think the 'drink drive bloody idiot' message has gone through our community significantly.
"Speeding as a whole has dropped off a bit, but international visitors (and) interstate drivers are the most serious proponents."
Victoria's Department of Transport is reviewing road rules ahead of regulations expiring this year. Proposed changes include a six-month conversion period for international drivers to sit licence tests, and a requirement for drivers with a temporary visa to convert to a local licence for the first time.
Sergeant McIvor previously served as the officer in charge at Edenhope, and has worked in Victoria Police's Major Collision Investigation Unit. He said fatal crash investigations continued well after the crash itself. "It could take up to 12 months if the coroner wants a full brief of evidence," he said. "We have to notify the next of kin, do a thorough evaluation of the site and whether any road or environmental factors contributed."
A VicRoads spokesman said the organisation had implemented a number of safety measures at Nhill-Harrow Road through Nurcoung in recent years. "These include rumble strip line-marking and additional warning signage on the approach to the bend," he said. A truck driver died on the road in May when his B-double rolled at a bend.
The spokesman encouraged Wimmera residents to report road concerns by calling 13 11 70.
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