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Small samples, big problems-the inability to provide a sample in breath alcohol testing: Case reports.
1ARO Consulting LLC, PO Box 132, Hugo, MN, 55038, USA.
Forensic Science International. Synergy
|April 18, 2025
Summary
Physiological limitations can prevent individuals from providing adequate breath samples for alcohol testing, leading to wrongful refusal charges. Current protocols need reform to accommodate individual differences and ensure fair impaired driving investigations.
Area of Science:
- Forensic Science
- Toxicology
- Legal Medicine
Background:
- Breath alcohol testing is crucial for impaired driving enforcement.
- Current protocols mandate a minimum breath sample volume.
- Physiological variations can impede sample provision.
Observation:
- Seven case reports detail individuals failing to meet breath volume requirements.
- Factors included age, gender, respiratory issues, and smoking history.
- Despite genuine attempts, individuals faced refusal charges.
Findings:
- Standardized volume requirements are inadequate for diverse populations.
- Testing protocols have vulnerabilities: equipment, operator bias, and anxiety.
- Current methods may not accurately reflect actual blood alcohol content.
Implications:
- Revising breath alcohol testing protocols is essential for fairness.
- Alternative testing methods (blood, urine) should be considered.
- Improvements in training, equipment, and data transparency are needed.
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