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Are Field Sobriety Tests Reliable?

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Are Field Sobriety Tests Reliable?

Are Field Sobriety Tests Reliable?

Facing a DWI charge can be overwhelming. One of the most intimidating aspects of such an accusation is the alleged evidence often presented against you—particularly the results of field sobriety tests. These tests, administered roadside, are designed to evaluate your physical coordination and mental focus. While they may seem like clear indicators of impairment at first glance, the reality is far more complex. I’m Scott A. Hamblin, an attorney experienced in defending against DWI charges, and I’ll tell you this—field sobriety tests are not always as reliable as they seem. With the right legal defense, it’s possible to challenge these tests and protect your rights.

Why Are Field Sobriety Tests Used?

Law enforcement officers use field sobriety tests as a preliminary method to assess whether a driver may be impaired. Typically, these tests include the Horizontal Gaze Nystagmus (HGN) test, the Walk-and-Turn test, and the One-Leg Stand test. Each of these exercises is intended to provoke signs of intoxication, such as trouble balancing, lack of coordination, or inability to follow multi-step instructions. Officers rely on these tests to establish probable cause before requesting a breath or blood test for alcohol content.

On the surface, field sobriety tests seem like a reasonable approach to identifying impaired drivers. However, these evaluations assume that every person’s physical and mental condition is a one-size-fits-all reflection of sobriety—or impairment. That assumption is a major flaw.

The Pitfalls of Field Sobriety Tests

Field sobriety tests are far from foolproof. Many factors can lead to inaccurate or misleading results. For example:

  1. Physical Limitations – A person who is older, has physical disabilities or suffers from conditions such as vertigo or arthritis may struggle to perform these tests, regardless of sobriety.
  2. Environmental Factors – Uneven pavement, poor weather, dim lighting or distracting roadside noise can all significantly impact a person’s ability to successfully complete the tests.
  3. Nervousness or Anxiety – Being stopped by law enforcement can be nerve-wracking. Some individuals may fail to perform well due to stress, not intoxication.
  4. Officer Bias or Improper Administration – If the officer administering the test is inexperienced, tired or not strictly following protocol, the results may be skewed. Similarly, an officer’s preconceived bias about a suspect’s guilt can influence their interpretation of performance during the test.

Given these issues, it’s clear that field sobriety tests are, at best, imperfect tools. They should not be viewed as conclusive evidence of intoxication.

Defending Against Field Sobriety Test Evidence

If you’ve been accused of a DWI after performing a field sobriety test, it’s important to know that those results can and should be scrutinized. As your attorney, I will carefully examine every detail of your case, including the administration and conditions of the test itself.

Potential defenses include:

  • Improper Training or Testing Methods – I’ll investigate whether the officer adequately followed the National Highway Traffic Safety Administration (NHTSA) guidelines when conducting the test.
  • Introducing Alternative Explanations – If your performance was hindered by physical limitations, weather conditions or other factors unrelated to alcohol, this can be used to your advantage.
  • Questioning Officer Credibility – If the arresting officer made errors in their report or has a history of improper conduct, that information can cast doubt on their version of events.

Contact Scott A. Hamblin Today

If you are facing a DWI charge, don’t make the mistake of assuming the evidence against you is ironclad. Field sobriety tests can be challenged, and with my legal experience, I will fight tirelessly to build a defense tailored to your unique situation. Protect your rights and your future—contact me, Scott A. Hamblin, today. Together, we can address your concerns and develop a strategy to seek the best possible outcome for your case.

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