The Horizontal Gaze Nystagmus Test & DUI Charges

DUI Arrests Caused By False-Positives

The HGN test is one of the three field sobriety tests that Connecticut law enforcement officials use when conducting a DUI investigation. During this test, police officers look for an involuntary movement of the eye that can be caused by alcohol consumption or certain types of drugs. While this test may sometimes be accurate in determining whether or not an individual is under the influence, the studies surrounding HGN testing have not been done rigorously and many false-positives result due to a variety of other factors.

Aside from alcohol consumption, HGN can also be caused by:

  • Caffeine
  • Aspirin
  • Fatigue
  • Certain medical conditions

If you were arrested for DUI, call us at immediately (844) 913-7747 to request a free consultation.

How Is the Test Administered?

The HGN test is supposed to be given in a standardized manner by police officers while you are standing outside of your vehicle. First, they will ask you to remove your glasses and keep your head still as you follow the stimulus with your eyes only. The stimulus could be an object such as a finger, pen or pen light that is held approximately 12 to 15 inches away from your face. It is held slightly above eye level as they move it from a standard position to the right, back to the center, and then to the left.

Connecticut DUI Lawyers Asserting Effective & Aggressive Defense Tactics

From distractions caused by flashing lights on police vehicles to other medical conditions, there are numerous other factors that can explain a failed HGN test. Our Connecticut DUI attorneys at Tomeo Sills, LLC can assert a variety of defenses on your behalf, including that law enforcement did not properly administer the test, that there were other distractions or that you have a medical condition.

Please reach out to our legal team for high-quality DUI defense.