Kari Vimpari

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The performance of eight on-site oral fluid drug screening devices was studied in Belgium, Finland and the Netherlands as a part of the EU-project DRUID. The main objective of the study was to evaluate the reliability of the devices for testing drivers suspected of driving under the influence of drugs (DUID). The performance of the devices was assessed by(More)
In this study, the performance of two on-site oral fluid drug-testing devices, DrugWipe 5(+) (Securetec) and Rapid STAT (Mavand), was assessed. The results obtained by the devices were compared with gas chromatography-mass spectrometry confirmation analysis results in oral fluid. Sensitivity, specificity, and accuracy of the tests, as well as positive and(More)
This study presents a retrospective performance evaluation of an on-site oral fluid drug screening device DrugWipe® 5/5+ (Securetec). The results obtained by the device were compared with gas chromatography–mass spectrometry confirmation analysis results in whole blood. Data used in the comparison were based on 1,807 real cases in which the Finnish police(More)
Reliable on-site oral fluid screening devices are a useful and convenient means of policing traffic. In Finland, benzodiazepines represent a particular challenge to traffic safety. This study presents a retrospective examination of toxicological analysis results from whole blood in cases which gave a positive screening result for benzodiazepines in oral(More)
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