Driver tests for drugs will continue
By Selma Milovanovic, Andrea Petrie
Kenneth Nguyen
December 23, 2004
The Premier insists a roadside drugs pilot is working although two positive tests are overruled in the lab.
Police will continue random roadside drug tests despite the first driver who initially tested positive being cleared.
Ballarat delivery driver John De Jong, 39, was identified as the first person in the world to return what police originally said was a positive reading for methamphetamine in a roadside saliva test. He tested positive for cannabis in a later, more sophisticated test in a police bus. But police and independent laboratory tests of a saliva sample taken from Mr De Jong returned negative results yesterday.
Premier Steve Bracks said the laboratory result showed the 12-month pilot program was working.
"We have a fail-safe system which means that, before charges are laid, there will be a conclusive laboratory test," he said. "We're confident that this is the best system possible for checking drugs."
Mr De Jong - who admitted to smoking one joint a month before he was tested but said he had never taken methamphetamine - questioned the accuracy of the tests and said he would consider suing the force for compensation. He said he was shocked police were refusing a public apology. While he supported roadside drug testing, he urged other drivers to challenge positive tests unless the technology was reviewed.
Assistant Commissioner (Traffic) Bob Hastings said police had simply applied the law.
Random roadside saliva testing began on December 13. Statistics revealed 31 per cent of Victorian motorists killed last year had tested positive to drugs.
The saliva tests detect the presence of THC (tetrahydrocannabinol, the active ingredient in cannabis) and metamphetamines, commonly found in speed.
If two tests return positive, a third sample is taken and divided in two. Half is laboratory tested at the Victorian Institute of Forensic Medicine while the other half is given to the driver. The third test determines whether the driver will be charged.
NSW police will hold a similar trial next year but motorists will not be penalised. "Because it is a trial of new technology, we wish to make sure we get everything right before full implementation," NSW Chief Superintendent John Hartley said.
Mr Hastings called for public patience as the Victorian program was refined and independently evaluated to determine its effect on the road toll.
Police Minister Andre Haermeyer said the Securetec Drugwipe II Twin devices used for the tests had returned no false positive results during the pre-pilot testing. "But when you take something out into the field, there are a whole lot of issues around how the device is used, which obviously we've now had to have a look at," he said.
Shadow police minister Kim Wells called for a halt in testing "until they get the equipment right", otherwise there would be no confidence in the process.
Mr Hastings said the pilot was already proving to be"a great deterrent".
He said 283 random drug tests were done over five days. Of the first three laboratory tests, two returned negative - including Mr De Jong's - while the third returned positive.
Dr Philip Swann , manager of drugs, alcohol and fatigue at VicRoads, said the saliva screening devices were tested and refined by manufacturers for Victorian conditions.
Dr Swann, who wrote the performance guidelines for the devices and chaired the taskforce that oversaw their testing, said that while the rate of false positives could never be zero during the screening process, laboratory tests were 100 per cent accurate.
Workplace drug testing experts said motorists should not be liable to prosecution until the trial period finished. Andrew Leibie, national account manager for d:tec Australia, said the trial results would help scientists identify factors that caused false positives.
Gwen Wilcox, chief executive of the Australian Drug Management and Education Group, said education and testing were two most effective deterrents. Ms Wilcox said until the testing improved, it should be recognised that "saliva is not a reliable test and governments are leaving themselves open to be sued".