Driving While Intoxicated (DWI) is a serious offense in New Jersey, carrying significant legal consequences. Those who face allegations of drunk driving are wise to understand the role of field sobriety tests in the case. These tests play an important role in determining a driver’s level of impairment and can influence the outcome of the case.
What is a field sobriety test?
Law enforcement use these tests to help evaluate a driver’s physical and cognitive abilities. These tests aim to identify signs of impairment due to alcohol or drugs. In New Jersey, officers typically administer three standardized tests:
- Horizontal Gaze Nystagmus (HGN): This is generally the first test, and it involves tracking eye movements. The officer who conducts this test will watch the driver’s eyes follow an object from side to side, such as the officer’s finger. Ideally, the driver’s eyes will smoothly follow the object. Any jerking movement of the eyes can be used against the driver as evidence of potential impairment.
- Walk-and-Turn: Officers use this test to check a driver’s balance and coordination. The driver must walk along a line, turn, and return while following specific instructions.
- One-Leg Stand: This test evaluates balance. The officer will ask the driver to balance on one leg while counting aloud for a set period and note if the driver hops, puts a foot down, sways their arms or uses their arms for balance.
Various factors can affect the outcome of these tests, such as medical conditions or environmental factors.
What happens if I fail a field sobriety test?
The prosecution will likely attempt to use this as evidence of impairment. Defense attorneys can counter this attempt, questioning the accuracy of the test. Factors like improper administration or external conditions can affect results.
Field sobriety tests play an important role in DWI cases in New Jersey. They provide law enforcement with a method to assess impairment and gather evidence. However, their results are not infallible and you can challenge them in court.