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Difficulty: Very hardZero Tolerance Laws for Drivers Under 21

During a routine traffic stop, a 19-year-old driver records a Blood Alcohol Concentration (BAC) of 0.015%0.015\% on a preliminary breath testing device. The driver demonstrates no physical signs of impairment and explains that the alcohol detected was due to taking over-the-counter medication shortly before driving. Under Zero Tolerance laws for drivers under 21, which of the following statements accurately describes the legal outcome?

  1. The driver is subject to administrative license suspension because Zero Tolerance laws set a strict chemical threshold (typically 0.01%0.01\% to 0.02%0.02\%) regardless of physical impairment or the source of alcohol.Answer
  2. B
    The driver cannot face administrative suspension unless law enforcement proves physical impairment through field sobriety tests.
  3. C
    The driver is exempt from administrative action because statutory penalties for alcohol consumption apply exclusively to BAC readings of 0.08%0.08\% or higher.
  4. D
    The driver's license cannot be suspended because implied consent testing regulations apply only to drivers involved in collisions resulting in injury.

Answer

Under Zero Tolerance laws, a driver under 21 years of age whose chemical test indicates a BAC of 0.015%0.015\% is subject to administrative license suspension, as the strict legal threshold (typically 0.01%0.01\% to 0.02%0.02\%) applies regardless of physical impairment or alcohol source.
Zero Tolerance laws establish a strict legal prohibition against any detectable blood alcohol concentration (typically set between 0.01%0.01\% and 0.02%0.02\% to accommodate potential testing margin errors) for drivers under the age of 21. Because these laws operate on strict liability, administrative driver license suspensions apply automatically based on chemical evidence, regardless of whether the driver shows physical impairment or consumed alcohol through medication.

Step-by-Step Solution

1
Identify the driver's age and chemical test reading
The driver is 19 years old (under 21) with a BAC of 0.015%0.015\%.
Age determines whether standard adult limits (0.08%0.08\%) or underage zero-tolerance limits (0.01%0.01\%-0.02%0.02\%) govern the case.
2
Apply the statutory rule for underage zero-tolerance enforcement
Any measurable BAC at or above the zero-tolerance threshold (0.01%0.01\%-0.02%0.02\%) triggers mandatory administrative license suspension.
Zero-tolerance laws function under strict liability; neither proof of physical impairment nor the intentional consumption of alcoholic beverages is required to enforce administrative consequences.

Key Concept

Strict Liability and Low BAC Thresholds of Underage Zero Tolerance Laws
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Zero Tolerance Laws for Drivers Under 21

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