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Field Sobriety Tests

Knoxville Field Sobriety Tests Attorney

Failure Doesn’t Mean Fault. Call Us at (865) 896-9971 for Skilled Defense!

Were you pulled over on suspicion of a DUI? Typically, police officers administer testing methods, or field sobriety tests, to help determine if a driver was operating a vehicle under the influence of alcohol or drugs. The problem with these field sobriety tests is that they are often inaccurate, and in many cases, they are too difficult for even a sober person to pass.

What Are Field Sobriety Tests?

In most cases, law enforcement utilizes three field sobriety tests to decide whether a suspected DUI driver is guilty. 

The National Highway Traffic Safety Administration (NHTSA) describes these standardized tests in further detail:

Horizontal Gaze Nystagmus (HGN) Test

This is an involuntary jerking of the eyeball which occurs naturally as the eyes gaze to the side. Under normal circumstances, nystagmus occurs when the eyes are rotated at high peripheral angles. 

However, when a person is impaired by alcohol, nystagmus is exaggerated and may occur at lesser angles. An alcohol-impaired person will often have difficulty smoothly tracking a moving object. 

In the HGN test, the officer observes a suspect following a slowly moving object, such as a pen or small flashlight, horizontally with their eyes. 

The examiner looks for three indicators of impairment:

  • if the eye cannot follow a moving object smoothly
  • if jerking is distinct when the eye is at maximum deviation
  • if the angle of onset of jerking is within 45 degrees of center

Walk-And-Turn Test

The subject is directed to take nine steps, heel-to-toe, along a straight line. After taking the steps, the suspect must turn on one foot and return in the same manner in the opposite direction. 

The officer checks if the suspect:

  • cannot keep balance while listening to the instructions
  • begins before the instructions are finished
  • stops while walking to regain balance
  • does not touch heel-to-toe
  • uses arms to balance
  • loses balance while turning
  • takes an incorrect number of steps

Contact our Knoxville field sobriety tests attorney online or call (865) 896-9971 as soon as possible to get started on your defense.

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“Mr. Fanduzz is committed to nothing but the BEST outcome for his clients.”
Nearly two years ago, I was charged with DUI and Speeding. Due to my occupation, a conviction could be detrimental to my career. I contacted Mr. Fanduzz and he was able to have my case placed on Judicial Diversion, which required me to serve only one year supervised probation (reduced from two years) and court cost. I retained my drivers license and did not have to purchase expensive car insurance. Unfortunately, while on probation, I was charged with two counts of assault and aggravated assault. Along with these new charges, I also faced violation of my probation and the original DUI. All charges were considered Felonies at this point. There was no hesitation in hiring him to represent me again. Mr. Fanduzz not only kept me well informed, he also skillfully and agressively argued on my behalf. He arranged for my probation and judicial diversion to be reinstated and the felony assault charges to be dismissed in exchange for a plea to a misdemeanor offence. Needless to say, I highly recommend Mr. Fanduzz because of his attention to detail and commitment to have the BEST possible outcome for his clients.
N.D.
Meet Your Attorney
Joseph Fanduzz is in an elite group of trial lawyers who have attended and graduated from the National Criminal Defense College.