Screening for drugs in oral fluid : drug driving and illicit drug use in a sample of Queensland motorists

摘要

Objective: Random roadside oral fluid testing is becoming increasingly popular as an apprehension and deterrence-based countermeasure to reduce drug driving. This paper outlines research conducted to provide an estimate of the extent of drug driving in a sample of drivers in Brisbane, Queensland.----- udMethods: Oral fluid samples were collected from 1587 drivers who volunteered to participate at Random Breath Testing (RBT) sites. Illicit substances tested for included cannabis (delta 9 tetrahydrocannibinol [THC]), meth/amphetamines and cocaine. Drivers also completed a self-report questionnaire regarding their drug-related driving behaviour.-----udResults: Oral fluid samples from 58 participants (3.7%) were confirmed positive for at least one illicit substance. The most common drugs detected in oral fluid were ecstasy (n = 35) followed by cannabis (n = 20). Similarly, cannabis was confirmed as the most common self-reported drug combined with driving. Nevertheless, individuals who tested positive to any drug through oral fluid analysis were also more likely to report the highest frequency of drug driving.----- udConclusions: This research provides evidence that drug driving is relatively prevalent on some Queensland roads, and thus the behaviour presents as a serious road safety threat. This paper will further outline the study findings and present possible directions for future drug driving research.