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Alcohol and Drug Testing in Motor Vehicle Crashes
Deborah French1, Roy R Gerona2
1Department of Laboratory Medicine, University of California San Francisco, 185 Berry Street, Suite 290, San Francisco, CA 94107, USA.
Clinics in Laboratory Medicine
|May 10, 2025
Summary
Driving under the influence of alcohol and drugs significantly increases motor vehicle crash risks. This review covers the impact of these substances on driving and detection methods.
Area of Science:
- Forensic toxicology
- Traffic safety research
- Neuroscience
Background:
- Alcohol impairment is a primary cause of motor vehicle accidents, injuries, and fatalities.
- Drug-impaired driving is a growing concern, contributing significantly to road traffic incidents.
- Understanding the combined effects of alcohol and drugs on driving is crucial for public safety.
Purpose of the Study:
- To review the effects of alcohol and common drugs on driving abilities.
- To discuss the analytical matrices and testing methods for detecting these substances in drivers.
- To provide a comprehensive overview for improving road safety measures.
Main Methods:
- Literature review of scientific studies on substance impairment and driving.
- Analysis of toxicological data from various matrices (blood, urine, saliva).
- Examination of analytical techniques for drug and alcohol detection.
Main Results:
- Alcohol and various drugs (hallucinogens, stimulants) demonstrably impair driving skills.
- Detection methods vary in sensitivity and applicability across different matrices.
- Prevalence of drug-impaired driving necessitates robust detection and enforcement strategies.
Conclusions:
- Impairment from alcohol and drugs poses a serious threat to road safety.
- Effective detection and testing protocols are essential for identifying impaired drivers.
- Continued research is needed to address the evolving challenges of substance-impaired driving.
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