Drug and Driving: A Compendium of Research Studies

Annotated Sources (cont'd)

Austria

17. Risser, D., Stichenwirth, M., Klupp, N., Schneider, B., Stimpfl, T., Vycudilik, W., and Bauer, G. (1998)

Journal of Forensic Sciences, 43(4): 817-820.

Overview

Study of drivers suspected of driving under the influence of drugs in Vienna, Austria

Population(s) and proportion tested (including type of study)

N=205
Stopped for reasons such as reckless driving, unsafe driving, driving at high speeds, etc.
Time period of 1993 to 1996

Drugs examined (threshold values for detection)
  • Cannabis
  • Benzodiazepines
  • Morphine
  • Cocaine
  • Méthadone
  • Amphetamines
  • Barbituriques
  • Alcohol
  • Methaqualone
Method of testing and medium used

Urine samples

Data obtained from police files and toxicology reports

Other dependent variables

None

Findings (including statistical methods)

66% with cannabis, 44% morphine, 23% cocaine, 14% methadone

Cannabis positive cases rose from 47% in 1993 to 72% in 1996, whereas morphine positive cases decreased (58% to 37%)

More than one drug detected in 48% of cases

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