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Field Sobriety Tests

What are the Field Sobriety Tests?

The Field Sobriety tests were initially developed by the Nation Highway and Safety Administration(NHTSA) as a series of tests that the police could use do determine if driver's were impaired.  However, these test were initially designed to indicate impairment when a driver had a blood alcohol level of .10.  The legal limit in the state of Florida is currently .08.  The Field Sobriety Tests are NOT tests.  They are not pass or fail and they are not graded(i.e. A, B, C, D or F).  In fact, it is against the law for a police officer to refer to them as tests in court.  Police officer can only refer to them as Field Sobriety Exercises(FSEs) or Field Sobriety Tasks (FSTs)  Likewise, a police officer cannot testify in court that a person passed or failed them or received a specific grade for them.    

This is the law because there is no standardized set of criteria that if met results in a DUI arrest.  Studies have shown that these test are not 100 percent reliable in detecting for impairment.  They are merely a series exercises that a person under suspicion of DUI performs.  The officer can only testify whether a person performed well or poorly on the field sobriety exercised and the basis behind his opinion. 

If the Field Sobriety Tests are not tests why do police officers use them?

The Field Sobriety Exercises(FSEs) are divided attention tasks.  Meaning they require a physical component and mental component at the same time.  Police officers and prosecutors alike will try to make the argument that driving a car is a divided attention task and is therefore similar to the Field Sobriety Exercises(FSEs).  However, the Field Sobriety Exercises(FSEs) and driving a car are nothing alike.  Most people have never performed the Field Sobriety Exercises(FSEs) before and the first time they perform them, it is on the side of the road, in front of a police car, in the dark.  Meanwhile, people have been driving their car for years.  To compare the two and say they are similar is blatantly misleading.

Police officers use the Field Sobriety tests because studies by the NHTSA have shown that the walk and turn was determined to by sixty-eight percent (68%) accurate and the one leg stand was determined to be sixty-five (65%).  However, these tests were not validated with people that have medical conditions, sixty-five (65) years or older, and fifty (50) pounds or more overweight.  The police officers should use them only a a guide.  Unfortunately, police officer tend to rely on them more than they should without factoring in other considerations.   

How many Field Sobriety Tests are there? 

There are several different ones used by police officers, but the most common ones include Horizontal Gaze Nystagmus(HGN), the Walk and Turn, the One Leg Stand, the Finger to Nose, and the Rhomberg. Alphabet.  There are other exercises that used less frequently such the Palm Pat and Hand Coordination exercise. 

Horizontal Gaze Nystagmus(HGN) is sometimes also referred to as the Pen Light Task.  This refers to the involuntary jerking of the eyes.  There are some studies that suggest that when a person is under the influence of drugs or alcohol their eyes will jerk involuntarily(out of the control of the person).  However, when the person is not under the influence of alcohol their eyes will not involuntarily jerk.  It should be noted that there are nearly forty causes of nystagmus other than drug or alcohol.  Some people even have natural nystagmus.  Meaning their eyes jerk involuntarily every day for no reason.  Since there are so many causes of nystagmus officer must be special trained in HGN to be allowed to testify in court about it.  The officers must be qualified as a Drug Recognition Expert(DRE) to be able to testify about HGN.  Over ninety-five (95) percent of all officers are not a Drug Recognition Expert(DRE).  As such, there is a good chance that if an officer performed HGN he will not be able to testify about it in court.

The Walk and Turn is where an officer requires a person to walk nine heel to toe steps in a straight line, turn around in a specific manner, and walk nine heel to toe steps back.  This exercise can be extremely difficult for the elderly, a person with a leg or back injury, and anyone that is overweight.  The mere fact that an in shape a twenty-year-old and eighty-year-old can perform the same exercise on its face is unfair.  Moreover, in this exercise the officer can and will hold even the slightest mistake against you.  Especially, if you do not follow the instructions to the letter.

The One Leg Stand is an exercise where the person holds one leg up in a specific manner for thirty second.  For the same reasons mention above with the Walk and Turn this exercise can be extremely unfair.  In certain instances, an arrest can be made even when the person holds their leg up for the entire thirty seconds.

The Finger to Nose exercise is where a person closes their eyes, tilts their head back, and touches the tip of their nose with their finger on the officer's command.  The officer will call out a hand, right or left and the person will have to touch the tip of their nose with that hand.  Usually, the officer will call out the hands in the order of left, right, left, right, right, left.  Any small mistake noticed by the officer will be held against the person.

The Rhomberg Alphabet is where a person is recites the alphabet in a non-rhythmic non-singing manner.  Often times a person will perform this exercise correctly, but an officer will state that the person was swaying while they performed it.  This is also an exercise that should not be performed if English is not the persons first language or there is any indicator that the person does know the alphabet.

In the end all of the Field Sobriety Exercises(FSEs) are subjective and it is up to the officer's discretion whether to make a DUI arrest.  A qualified DUI lawyer can thrive on cross examining this subjectivity and the officer's opinion.   

When can an officer ask me to perform the Field Sobriety Exercises(FSEs)?

An officer cannot ask a person to step out of the car and perform the Field Sobriety Exercises(FSEs) and perform them for no reason.  However, the standard for an officer to request a person perform the Field Sobriety Exercises(FSEs) is relatively low.  It is usually met if the officer says he smelled an odor of alcohol.

Do I have to perform the Field Sobriety Exercises(FSEs)?

The Field Sobriety Exercises are voluntary, and nobody can be required to perform them.  Our clients are usually counseled to politely decline to perform them because they are subjective.  A person can perform well on the Field Sobriety Exercises(FSEs) and the officer can disagree and make an arrest. 

What if I refuse to perform the Field Sobriety Exercises(FSEs)

If a person refuses to perform the Field Sobriety Exercises(FSEs), the officer has a duty to tell the person that their refusal can have a negative consequence.  For example, it could be used against them in court or the officer could arrest the person.  If the officer does not tell the person of a negative consequence, then the fact a person refused to perform the Field Sobriety Exercises(FSEs) cannot be used against them in court. As stated above we regularly counsel our clients to politely decline to perform the Field Sobriety Exercises(FSEs).

There is so much gray area with the Field Sobriety Exercises(FSEs) because they are subjective.  An experienced DUI lawyer at your side is invaluable when evaluating and fighting these exercises in your case.

At Keller, Melchiorre & Walsh we have three former prosecutors that have each handled thousands of DUI cases with field sobriety exercises.  Call us at (561)295-5825 for a free case evaluation and analysis of how you preformed on the field sobriety exercises. 

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