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Roadside oral fluid testing for illicit drugs in Western Australia: trend in testing and offences and characteristics of offenders, 2008-2015
This research sought to describe the trend in roadside oral fluid testing in Western Australia and associated offences and characteristics of offenders during the period 2008-2015. The rate of testing per licensed driver fluctuated over the period but showed signs of increasing in the latter years of the period, as did the rate of offending. Males and drivers aged 25-39 years were the most frequent offenders; repeat offenders were most likely to be female, aged < 40 years and to have first offended in regional WA. The results are discussed in relation to testing and enforcement practices.