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Related Experiment Videos

Development of a standardized boating sobriety test.

A J McKnight1, J E Lange, A S McKnight

  • 1National Public Services Research Institute, Landover, MD 20785, USA. jmcknigh@mail.pire.org

Accident; Analysis and Prevention
|March 20, 1999
PubMed
Summary

A new boating sobriety test was developed to help law enforcement identify impaired boaters. This standardized boating sobriety test (SBST) shows similar effectiveness to land-based tests for detecting alcohol impairment.

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Area of Science:

  • Forensic Science
  • Marine Safety
  • Toxicology

Background:

  • Operating a boat while under the influence of alcohol poses significant safety risks.
  • Existing methods for assessing boat operator impairment are limited, especially on the water.
  • Establishing probable cause for breath alcohol testing requires reliable field sobriety assessments.

Purpose of the Study:

  • To develop and validate a sobriety test suitable for use on recreational boats.
  • To identify reliable indicators of alcohol impairment in boat operators.
  • To create a standardized boating sobriety test (SBST) as an alternative to land-based field sobriety tests.

Main Methods:

  • Laboratory assessment of 12 candidate measures for correlation with blood alcohol concentration (BAC) in 32 subjects.

Related Experiment Videos

  • Field testing of 4 promising measures by marine police on 60 recreational boaters (BAC 0.0-0.20%).
  • Statistical analysis of correlations between test results and BAC, and classification accuracy for a 0.10% BAC limit.

    • Main Results:

    • Three measures demonstrated significant correlation with BAC: horizontal gaze nystagmus (seated), reciting the alphabet, and a hand-clapping task.
    • The performance of these three measures in distinguishing boaters above/below 0.10% BAC was comparable to the standardized field sobriety test (SFST) for vehicles.
    • The developed SBST showed similar efficacy to the SFST in identifying alcohol-impaired boat operators.

    Conclusions:

    • A three-measure standardized boating sobriety test (SBST) is effective for assessing boat operator impairment.
    • The SBST provides a viable alternative to the SFST when boaters cannot be brought ashore for testing.
    • This tool aids law enforcement in establishing probable cause for breath alcohol sample requests, enhancing maritime safety.