A TRAFFIC enforcement operation was run from February 16-22 on the Great Eastern Highway.
It was a joint-operation with Police, Main Roads, The Department of Transport, Dangerous Goods and WorkSafe.
The operation ran non-stop during this time for 24 hours, primarily targeting truck drivers.
Drivers were drug tested and breath-tested.
Log books were checked and vehicles searched and inspected for road worthiness.
A police officer on site last Wednesday was Sergeant Beveridge.
He said drugs had been seized during the operation and drivers had also tested positive for drugs.
"We are bringing in every west-bound truck," he said.
"One of these large scale events usually happens once a year, and it will vary on where we set up."
On average 250 trucks were searched a day.
"My message is for people not to drive drug or alcohol impaired," Sgt Beveridge said.
Principal Dangerous Goods officer Peter Xanthis said his focus was on people hiding dangerous goods on their vehicle.
"We did have a fatal crash about two years ago on the Great Eastern Highway with chemicals leaking all over the road," he said.
"This is the type of thing we are trying to prevent."
Dangerous Goods officer Iain Dainty said a safety notice had been given to a driver for not having the correct safety equipment.
"On average, about 40 per cent of vehicles will have some sort of fault," he said.
"However I am glad to say things are getting better."
