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The Standardized Field Sobriety Tests (SFSTs) are a critical aspect of DUI investigations in Washington DC. Understanding these tests and your rights is crucial for protecting yourself. This blog post will explain the three primary SFSTs and highlight why seeking counsel from a Washington DC DUI Attorney is vital if you have been arrested for a DUI.

The Purpose of SFSTs

SFSTs are a series of roadside tests designed to provide law enforcement officers with an objective assessment of a driver’s impairment level. These tests are intended to help determine whether probable cause exists for a DUI arrest. However, the results are not foolproof.

The Three Standardized Tests:

1. Horizontal Gaze Nystagmus (HGN): This test assesses involuntary jerking of the eyes as they track a moving object. Nystagmus (jerking) is a potential indicator of impairment. The officer observes the presence of nystagmus at maximum deviation (looking as far to the side as possible), lack of smooth pursuit, and onset of nystagmus prior to 45 degrees.
2. Walk-and-Turn: This test evaluates balance, coordination, and the ability to follow instructions. The driver is instructed to take nine heel-to-toe steps, turn, and return. The officer looks for signs of impairment such as loss of balance, stepping off the line, improper turns, or difficulty following directions.
3. One-Leg Stand: This assesses balance and the ability to maintain a stable posture while standing on one leg for 30 seconds. The officer observes for swaying, putting the foot down, using arms for balance, or hopping.

Challenging SFST Results

Even though the NHTSA promotes SFSTs as reliable indicators, there are reasons to challenge their results:

• Officer Training and Proficiency: The accuracy of SFST results depends on the officer’s training and their ability to administer the tests correctly. Inadequate training or errors in administering the tests can invalidate the results.
• Environmental Factors: External factors like uneven surfaces, weather conditions, or medical conditions can impact a driver’s performance.
• Subjectivity: There is an inherent level of subjectivity in interpreting the results of SFSTs. Different officers may interpret the same behavior differently, leading to inconsistent findings.

Contact Monument Legal for Expert Guidance

Facing a DUI charge requires a thorough understanding of the law and the intricacies of SFSTs. A skilled Washington DC DUI lawyer can help to challenge the results of these tests and build a robust defense. Contact Monument Legal today for a free consultation.