The modified Romberg balance test asks you to stand with your feet together, tilt your head back, close your eyes, and silently count off what you think is thirty seconds, telling the officer when you believe the time is up. The officer notes how much you sway, whether your eyelids or body tremble, and how far your estimate lands from thirty seconds. It is not part of the standardized battery, and under State v. Meador, 674 So. 2d 826 (Fla. 4th DCA 1996), it is only the officer’s lay observation.
The test carries an extra theory the others do not. The idea behind the time estimate is that impairment changes a person’s internal clock, so an estimate that runs fast or slow is treated as a sign of drugs or alcohol. That theory was never validated as a roadside test, and time perception varies widely among sober people and shifts with stress.
The modified Romberg leans on a time-perception theory that was never validated, while the position it uses makes sway and tremor likely in anyone.
The internal clock does not keep good time
Ask a roomful of sober people to estimate thirty seconds with their eyes closed and you will get answers spread across a wide range. Add the adrenaline of a traffic stop, with lights flashing and an officer watching, and many folks find their sense of time speeds up. A short or long estimate in that setting is an expected human reaction, not a measurement of impairment, and there is no validated chart that turns a number of seconds into proof of anything.
Guessing thirty seconds is not a sobriety test
Ask ten sober people to close their eyes and tell you when thirty seconds have passed and you will get ten different answers, some well short and some well over. That is not a sign of anything except that the human internal clock is rough, and it runs even faster when a person is frightened, which is the ordinary state of someone stopped by police at night. So when an officer treats a count of twenty seconds or forty seconds as evidence of drugs or alcohol, the honest answer is that stress alone moves the number that much. On top of the timing, the stance itself, head back and eyes closed with the feet together, takes away the vision and inner-ear signals a body uses to stay still, so the sway the officer notes was built into the position before you ever started counting.
NHTSA’s own training adds a concession that fits this exercise. It states that a test which is difficult for a sober person to perform has little or no evidentiary value, and estimating thirty seconds with the eyes closed and the head back, under the stress of a stop, is difficult for a sober person, so the agency’s own words say the result should carry little weight.
The stance creates the sway
Like the finger to nose, the modified Romberg is given in the one position designed to make balance hard. Eyes closed removes vision, the head tilted back disturbs the inner ear, and the feet are placed together to narrow your base. Sway and small tremors follow from the setup. Cold, fatigue, anxiety, and a long list of medical conditions add more, none of which the officer screened for at the roadside.
Used in drug screening, still not validated
The modified Romberg appears in ARIDE and in drug recognition work, which is why officers often turn to it when they suspect drugs rather than alcohol. That drug analysis belongs in the drugged driving section. Being used in those courses does not give the estimate the validation a courtroom test needs, and the time-perception theory remains unproven.
This exercise came out of drug-screening training, not from anything validated as an alcohol test, and it asks a frightened person to be a stopwatch. I show the jury how far a normal internal clock drifts under stress, and how the stance itself creates the sway the officer wrote down. There is no manual and no score behind it, so I do not let a guess at thirty seconds and a little swaying stand in for proof, and I make the State own the difference between a real test and a party trick given on the shoulder of a road.
I started out as an Assistant Public Defender in Florida’s Thirteenth Judicial Circuit, in Tampa, and today I am one of six ACS-CHAL Forensic Lawyer-Scientists in Florida and an NHTSA-qualified field sobriety instructor. I was trained to administer this battery and to teach the officers who give it, so I can stand in front of a jury and show the exact point where the roadside exercises in your case left the standard. Learn more about my background.
Questions About the Romberg Balance Estimate
What is the modified Romberg test?
You stand with your feet together, tilt your head back, close your eyes, and silently estimate the passing of thirty seconds, then tell the officer when you think it has elapsed. The officer watches your sway and tremor and notes how close your estimate was.
What is the internal clock theory?
It is the idea that impairment changes how a person perceives time, so a fast or slow estimate of thirty seconds supposedly signals drugs or alcohol. Time perception varies widely in sober people and shifts with anxiety, so the theory is shaky.
Is the Romberg estimate validated?
No. It is not one of the three NHTSA validated exercises. It appears in the ARIDE and drug recognition courses, but it has no validation study or official scoring as a roadside impairment test.
Why might a sober person do poorly?
Standing still with your eyes closed and head back removes the cues you use to balance, so sway is expected, and stress at a traffic stop speeds up the sense of time for many folks. Neither says anything reliable about alcohol.
How is it used in drug cases?
The modified Romberg is part of the drug-screening courses, so officers often use it when they suspect drugs. The drug-specific analysis belongs in the drugged driving section, and its use there still does not validate it as a test.
How do you challenge it?
I show the jury the internal-clock theory has no validation, that the eyes-closed, head-back stance makes sway normal, and that a time estimate at a roadside is affected by adrenaline far more than by any measured impairment.
Related: the non-standardized overview, the finger to nose test, medical conditions, the roadside conditions, and HGN and drugs.
Does swaying or misjudging the time mean I was impaired?
No. Sober people routinely misjudge thirty seconds, and stress from a stop pushes the estimate further off. The stance, head back and eyes closed, also produces sway on its own. The exercise comes from drug-screening training and was never validated as a standalone alcohol test, and it has no standardized scoring.
This page is general information, not legal advice, and it does not create an attorney-client relationship. Field sobriety exercises in Florida are governed by case law and by section 316.193, Florida Statutes. Procedures and rules change, and every case turns on its own facts. Past results do not guarantee a similar outcome.
