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Drugged driving in the Nordic countries--a comparative study between five countries.

A S Christophersen1, G Ceder, J Kristinsson

  • 1National Institute of Forensic Toxicology, Oslo, Norway.

Forensic Science International
|February 19, 2000
PubMed
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Drugged driving detection in Nordic countries reveals Norway

Area of Science:

  • Forensic toxicology
  • Drug-impaired driving research
  • Nordic comparative analysis

Background:

  • Drugged driving is a significant public safety concern.
  • Previous research indicated a high incidence of drugged driving in Norway compared to other Nordic countries.
  • Variations in law enforcement's focus and detection methods may influence reported drugged driving rates.

Purpose of the Study:

  • To compare the incidence of drugged driving in Norway with that in Denmark, Finland, Iceland, and Sweden.
  • To investigate the role of police suspicion and analytical methods in drugged driving statistics.
  • To identify the prevalence of specific drugs and alcohol in suspected driving under the influence cases across Nordic countries.

Main Methods:

  • Analysis of blood samples from drivers suspected of driving under the influence in all Nordic countries during a one-week period in 1996.

Related Experiment Videos

  • Simultaneous testing for alcohol and a range of drugs (benzodiazepines, cannabinoids, amphetamines, cocaine, opiates, antidepressants) using consistent analytical cut-off levels.
  • Comparison of police suspicion criteria and detection rates for alcohol and drugs.

    • Main Results:

    • Drugs were detected in over 70% of Norwegian cases where drugged driving was suspected, compared to 0-17% in other Nordic countries.
    • The majority of drug-positive cases in Norway and Sweden involved drivers with no alcohol detected (80-83%).
    • Benzodiazepines, tetrahydrocannabinol, and amphetamine were the most frequently detected drugs.

    Conclusions:

    • Differences in drugged driving statistics between Norway and other Nordic countries are primarily due to police selection criteria and a greater focus on drugged driving enforcement in Norway.
    • Analytical methods and cut-off levels were standardized, suggesting observed differences are not due to testing variations.
    • Law enforcement's focus significantly impacts the reported incidence of drugged driving, highlighting the need for consistent detection strategies.