If you were arrested for DUI in West Palm Beach after failing a field sobriety test, the first thing you need to know is this: those tests are designed for failure. Officers administer them roadside, at night, under stressful conditions — and then grade you on a checklist most people couldn’t pass stone-cold sober. Meltzer & Bell’s defense team has challenged field sobriety test evidence in hundreds of DUI cases across Palm Beach County. With a former felony special unit prosecutor and former major crimes public defender leading the firm, the attorneys here know exactly how the state tries to use FST results — and how to tear that evidence apart.
Meltzer & Bell has taken over 500 DUI and criminal cases to jury verdict and earned more than 1,000 five-star Google reviews from clients across South Florida. The defense team includes attorneys who used to prosecute DUI cases — they know the playbook. If field sobriety tests are the backbone of the case against you, that’s a weakness, not a strength. Call now for a free, confidential case review — available around the clock, day and night.
On This Page:
- How FSTs are used against you
- The three standardized tests
- How officers score your performance
- What happens after you “fail”
- Why sober people fail field sobriety tests
- HGN test problems
- Walk and turn test flaws
- One leg stand test challenges
- Non-standardized tests
- Defenses that work
- Frequently asked questions
- Why choose Meltzer & Bell
How Field Sobriety Tests Are Used Against You in Palm Beach County
Field sobriety tests are not medical tests. They are not scientific instruments. They are a law enforcement tool — and they exist for one purpose: to give the officer a reason to arrest you.
When a police officer in West Palm Beach, Jupiter, Boca Raton, or anywhere in Palm Beach County pulls you over on suspicion of DUI, the officer already suspects you’ve been drinking. The field sobriety tests are administered to build evidence supporting what the officer has already decided. That’s not cynicism — it’s how the system works, and it’s something the former prosecutors at Meltzer & Bell understood from inside the State Attorney’s Office.
Under Florida law (F.S. 316.193), the state can prove DUI in two ways: by showing your blood alcohol content was 0.08% or higher, or by showing your “normal faculties” were impaired. Field sobriety tests target that second method. Even if you never took a breath test or your BAC came back below the legal limit, the prosecution can still try to convict you based on FST performance alone.
That’s why challenging field sobriety test evidence is one of the most effective DUI defense strategies available. And it’s something Meltzer & Bell does in case after case.
The Three Standardized Field Sobriety Tests — And Their Weaknesses
The National Highway Traffic Safety Administration (NHTSA) developed three “standardized” field sobriety tests. These are the only three tests that carry any scientific backing — and even that backing is limited and heavily criticized. The three tests are:
- Horizontal Gaze Nystagmus (HGN)
- Walk and Turn (WAT)
- One Leg Stand (OLS)
Officers in Palm Beach County are trained to administer these three tests according to specific NHTSA protocols. Here’s the critical point: if the officer didn’t follow the protocols exactly, the results are unreliable. And in our experience handling DUI cases throughout South Florida, officers frequently deviate from proper procedures.
Let’s break down each test and the problems that follow.
The HGN Test: What Officers Get Wrong
The Horizontal Gaze Nystagmus test checks for an involuntary jerking of the eye that can occur when a person looks to the side. Officers hold a stimulus — usually a pen or small flashlight — and move it across your field of vision while watching for three “clues” in each eye:
- Lack of smooth pursuit (the eye jerks instead of tracking smoothly)
- Distinct and sustained nystagmus at maximum deviation
- Onset of nystagmus before 45 degrees
The officer records up to six total clues. According to NHTSA, four or more clues indicate impairment.
Here’s the problem: Nystagmus has over 40 known causes that have nothing to do with alcohol. Medical conditions, medications, fatigue, caffeine, eye conditions, flashing police lights, and even natural nystagmus can all produce the same eye movements the officer is looking for.
Additional HGN test problems our defense team regularly challenges include:
- Improper administration — The officer moved the stimulus too fast, held it at the wrong distance, or failed to check for equal pupil size and resting nystagmus first
- Environmental interference — Strobe lights from the patrol car, passing traffic, or ambient lighting affecting the officer’s observation
- Lack of medical history — The officer never asked whether you had any eye conditions, head injuries, or were taking medications
- Subjectivity — The officer is making real-time judgments about involuntary eye movements on the side of a road at night. There’s no video of what the officer claims to have observed in your eyes
In Florida courts, HGN evidence is admissible but subject to challenge. A field sobriety test lawyer who understands the science behind HGN — and where the science falls short — can expose these problems for the judge and jury.
Arrested after failing the HGN test? Meltzer & Bell’s defense team has challenged this evidence hundreds of times. Call now for a free case review.
The Walk and Turn Test: Built for Failure
The walk and turn test is a “divided attention” test — it supposedly measures your ability to follow instructions while performing a physical task. You’re asked to take nine heel-to-toe steps along a straight line, turn in a specific manner, and take nine heel-to-toe steps back.
Officers watch for eight clues:
- Cannot maintain balance during instructions
- Starts too soon
- Stops while walking
- Doesn’t touch heel to toe
- Steps off the line
- Uses arms for balance
- Improper turn
- Wrong number of steps
Two or more clues supposedly indicate impairment. But consider this: NHTSA’s own research found that this test is only 68% accurate at identifying impairment. That means roughly one in three people “fail” the walk and turn test without being impaired at all.
Our FST defense attorneys regularly expose these walk and turn test flaws:
- Surface conditions — Uneven pavement, gravel, grass, sloped roadways, or wet surfaces make heel-to-toe walking difficult for anyone
- Footwear — High heels, sandals, boots, or dress shoes significantly affect balance and coordination
- Age and weight — NHTSA’s own guidelines note the test is less reliable for people over 65 or more than 50 pounds overweight
- Medical conditions — Back problems, knee injuries, inner ear conditions, neuropathy, and leg injuries all affect performance
- Instructions — Officers frequently rush through instructions, give incomplete directions, or fail to demonstrate the test properly
- The “line” itself — Sometimes there’s no actual line. Officers tell you to imagine one. Try walking an imaginary straight line with red and blue lights in your face at 2 AM
These aren’t excuses — they’re documented reliability problems with the test itself. When the defense at Meltzer & Bell reviews your DUI case, we obtain the dash cam and body cam footage and compare what actually happened to what the officer wrote in the report. The differences are often dramatic.
The One Leg Stand Test: 35% of Sober People Fail
The one leg stand test requires you to stand on one foot, raise the other foot approximately six inches off the ground, and count out loud for 30 seconds while keeping your arms at your sides.
Officers watch for four clues:
- Swaying while balancing
- Using arms for balance
- Hopping
- Putting the foot down
Two or more clues supposedly indicate impairment. NHTSA’s own research puts the accuracy of this test at only 65% — meaning 35% of sober individuals will “fail.”
Our defense team challenges one leg stand results based on:
- Physical limitations — Anyone with ankle, knee, hip, or back problems will struggle. So will people who are overweight, elderly, or simply not physically fit
- Footwear and surface — Same problems as the walk and turn
- Anxiety and adrenaline — Being pulled over by police, with lights flashing and cars passing, causes physiological responses that mimic impairment: shaking, sweating, difficulty concentrating
- Weather conditions — Wind, cold temperatures, rain, and humidity affect balance
- Time of night — Fatigue alone can cause poor balance. Most DUI stops happen late at night when everyone is tired
When our attorneys review the evidence in your case, we look at every factor that could have affected your performance — and we make sure the judge or jury hears about it.
Non-Standardized Tests: Even Less Reliable
Some officers administer additional tests beyond the three NHTSA standardized exercises. These non-standardized tests have even less scientific support and are easier to challenge. Common examples include:
- Finger-to-nose test — Touching your nose with your fingertip while your eyes are closed
- Alphabet recitation — Saying the alphabet (sometimes backward, sometimes starting from a specific letter)
- Finger count — Touching your thumb to each finger while counting
- Romberg balance test — Standing with feet together, head tilted back, eyes closed
None of these tests have been validated by NHTSA. None have established accuracy rates. And none have standardized administration procedures. A field sobriety test lawyer can often get this evidence excluded entirely or at minimum severely undermine its credibility in front of a jury.
Don’t let unscientific roadside tests determine your future. Contact Meltzer & Bell for a free consultation — the team is available 24/7.
Why Sober People Fail Field Sobriety Tests Every Day
This isn’t speculation. Peer-reviewed research and NHTSA’s own studies confirm that field sobriety tests produce false positives at alarming rates. When all three standardized tests are administered together and scored according to NHTSA guidelines, the combined accuracy rate is approximately 82%. That means nearly one in five people identified as “impaired” are actually sober.
Here are documented reasons why completely sober individuals fail:
- Nervousness and anxiety — The stress of a police encounter causes trembling, rapid heartbeat, difficulty following instructions, and impaired coordination
- Medical conditions — Diabetes, inner ear disorders, neurological conditions, musculoskeletal injuries, vertigo, and vision problems
- Medications — Prescription drugs, over-the-counter medications, and supplements that cause dizziness, drowsiness, or balance problems
- Fatigue — Most DUI stops occur late at night. Tired people perform poorly on balance and coordination tests
- Age — Balance and coordination naturally decline with age
- Physical fitness — People who are overweight or not physically active have a harder time with balance tests
- Environmental conditions — Wind, rain, cold, uneven surfaces, traffic noise, police lights
The officers at the scene don’t account for any of this. They check boxes on their form and conclude you’re impaired. It’s our job to show the full picture.
How Meltzer & Bell Challenges Field Sobriety Test Evidence
When you hire Meltzer & Bell to defend your DUI case, challenging the field sobriety tests is just one piece of a comprehensive defense strategy. Here’s what the team does:
- Obtain and Review All Video Evidence
Every DUI stop in Palm Beach County should be recorded on dash cam and body cam. The video often tells a very different story than the arrest report. We compare the officer’s written account to what the footage actually shows — and we use discrepancies to undermine the state’s case.
- Analyze Officer Training Records
NHTSA requires specific training for FST administration. Officers must be certified and maintain that certification. We request the officer’s training records and determine whether they were properly certified at the time of your arrest.
- Challenge Administration Procedures
Even minor deviations from NHTSA protocols can compromise the reliability of the tests. Did the officer demonstrate the tests correctly? Did they give complete instructions? Did they administer the HGN test from the correct distance? Our defense team knows every step of the protocol and challenges every deviation.
- Document Physical and Medical Factors
We gather information about any medical conditions, medications, injuries, or physical limitations that could have affected your test performance. This evidence directly counters the officer’s conclusion that poor performance equals impairment.
- File Motions to Exclude or Limit FST Evidence
In some cases, we can argue that the field sobriety test evidence should be excluded entirely — for example, if the officer failed to follow NHTSA protocols or if the tests were administered in conditions that made them unreliable. Even if the evidence comes in, we can limit how the prosecution uses it.
- Cross-Examine the Officer
Our attorneys — including those who have handled hundreds of jury trials — know how to cross-examine officers on FST administration. We ask the questions that reveal improper procedures, subjective scoring, and the inherent limitations of the tests themselves.
This is what separates a defense firm that turns over every stone from one that just processes your plea. Prosecutors know the defense team at Meltzer & Bell actually tries cases — and that knowledge influences how they handle cases well before trial.
The Connection Between FSTs and Other DUI Evidence
Field sobriety tests don’t exist in a vacuum. They’re typically combined with other evidence: breath or blood test results, officer observations, driving pattern testimony, and sometimes a refusal to submit to chemical testing. A strong defense strategy addresses all of these elements together.
For example, if your BAC was below 0.08% but the officer claims you “failed” the field sobriety tests, the defense can argue that the test results are unreliable and the low BAC actually supports your innocence. If you refused a breath test and the state relies entirely on FST evidence, that evidence becomes even more critical to challenge — because it may be the only proof of impairment the prosecution has.
Meltzer & Bell looks at the whole picture. We don’t just challenge one piece of evidence — we build a complete defense that addresses every element the state needs to prove.
Remember: you have only 10 days from your DUI arrest to request a formal review hearing with the DHSMV to protect your driving privileges. That deadline doesn’t wait. Call Meltzer & Bell immediately to make sure you don’t lose your right to challenge your administrative license suspension.
What to Do If You Were Arrested After a Field Sobriety Test
If you’ve already been arrested, the field sobriety test is done — but the fight for your freedom is just beginning. Here’s what you should do right now:
Write down everything you remember — What time was it? What were the road and weather conditions like? What were you wearing? Did you have any injuries or medical conditions that day? Were you tired? What exactly did the officer tell you to do? This information fades quickly, and it can be critical to your defense.
Do not discuss your case on social media. Nothing you post online is private. Prosecutors and police can and do check social media.
Do not talk to police or prosecutors without your lawyer present. Anything you say can be used against you — and it will be.
Call a field sobriety test lawyer immediately. The sooner your defense team reviews the evidence, the sooner we can identify the weaknesses in the state’s case and begin building your defense.
Why Choose Meltzer & Bell for Your FST Defense
The attorneys at Meltzer & Bell aren’t learning DUI defense in your case. They’ve been doing this for years — and they’ve seen every version of a bad field sobriety test arrest.
Attorneys Who’ve Worked Both Sides of the Courtroom. The founding partners include a prosecutor who handled the state’s most serious felony cases and a public defender who defended hundreds of serious criminal charges. They know how DUI cases are built because they used to build them. That insider knowledge now works for you.
A Proven Track Record in the Courtroom. With exposure to more than 500 jury trials through verdict, Meltzer & Bell has the courtroom experience that most firms simply can’t offer. Prosecutors know this team will take a case to trial if that’s what your defense requires.
Over a Thousand Satisfied Clients. More than 1,000 clients have left five-star Google reviews for Meltzer & Bell — making the firm the most-reviewed criminal defense practice in Palm Beach County. That kind of client endorsement doesn’t happen by accident.
Board Certified Criminal Trial Expertise. The firm has a Board Certified Criminal Trial Attorney on staff — a distinction held by fewer than 1% of all Florida lawyers. This is the highest level of criminal defense certification recognized by The Florida Bar.
We Build Real Defenses. Meltzer & Bell doesn’t take your money and immediately start negotiating a plea. The team investigates every angle, challenges every piece of evidence, files motions, reviews video, and prepares your case as if it’s going to trial — because sometimes it does.
Available When You Need Us. Criminal emergencies don’t wait for business hours, and neither does this firm. Call day or night for immediate assistance.
Contact a West Palm Beach Field Sobriety Test Defense Lawyer Today
A failed field sobriety test does not mean a DUI conviction. These tests have documented failure rates, documented administration problems, and documented scoring issues that an experienced defense team can expose.
If you were arrested for DUI in West Palm Beach, Boca Raton, Palm Beach Gardens, Delray Beach, Jupiter, Boynton Beach, or anywhere in Palm Beach County after performing field sobriety tests, Meltzer & Bell wants to review your case.
The consultation is free. The attorneys are available around the clock. And the team has the former government experience, the trial record, and the track record of results to give your case the defense it deserves.
Call Meltzer & Bell now at (561) 220-2898. Your defense starts today.
Frequently Asked Questions About Field Sobriety Test Defense in West Palm Beach
Can I refuse field sobriety tests in Florida?
Yes. Field sobriety tests are voluntary in Florida. Unlike breath tests, which carry an implied consent penalty for refusal, you have the right to decline roadside field sobriety exercises without any automatic penalty to your driver’s license. However, the officer can still arrest you based on other observations such as odor of alcohol, slurred speech, or driving pattern. If you’ve already taken the tests, a defense attorney can still challenge the results.
Are field sobriety test results accurate?
Not nearly as accurate as prosecutors want jurors to believe. According to NHTSA’s own research, the walk and turn test is only 68% accurate, the one leg stand is only 65% accurate, and even when all three standardized tests are used together, the combined accuracy is approximately 82%. That means a significant percentage of sober people will be incorrectly identified as impaired.
Can I be convicted of DUI based on field sobriety tests alone?
Yes, it’s possible. Under Florida Statute 316.193, the state can prove DUI by showing that your “normal faculties” were impaired — and field sobriety test evidence is one way they attempt to prove that. However, FST-only cases are often weaker for the prosecution, and an experienced DUI defense attorney can challenge this evidence effectively.
What if the officer didn’t follow proper procedures during my field sobriety tests?
This is one of the strongest defense strategies available. NHTSA requires officers to follow specific, detailed protocols when administering standardized field sobriety tests. If the officer deviated from these protocols — gave incomplete instructions, administered the test on an uneven surface, or failed to properly demonstrate the exercises — the results may be unreliable and potentially excludable.
Can a medical condition affect my field sobriety test performance?
Absolutely. Dozens of medical conditions can affect balance, coordination, and eye movements — the exact things field sobriety tests measure. Inner ear disorders, back and knee problems, neurological conditions, diabetes, vision impairment, and neuropathy can all cause you to perform poorly regardless of alcohol consumption. Prescription medications and even over-the-counter drugs can have similar effects.
Do police body cameras record field sobriety tests?
In most cases, yes. Officers in Palm Beach County typically have both dash cameras and body-worn cameras that record the DUI investigation, including field sobriety tests. This footage is often the most powerful tool in challenging FST results because it allows your defense attorney to show exactly what happened — as opposed to what the officer wrote in the arrest report.
How much does a field sobriety test lawyer cost in West Palm Beach?
Attorney fees for DUI defense vary based on the specifics of your case, including whether it’s a first offense or subsequent offense, whether there was an accident or injury, and the evidence involved. Meltzer & Bell offers free initial consultations so you can discuss your case and understand your options before making any financial commitment.
What’s the 10-day rule after a DUI arrest in Florida?
After a DUI arrest in Florida, you have only 10 calendar days to request a formal review hearing with the Department of Highway Safety and Motor Vehicles (DHSMV) to challenge the administrative suspension of your driver’s license. If you miss this deadline, your suspension goes into effect automatically. This is separate from your criminal case and requires immediate action.
Can a failed field sobriety test be thrown out of court?
In certain circumstances, yes. If the officer lacked reasonable suspicion for the initial traffic stop, if the tests were administered improperly, or if there were constitutional violations during the DUI investigation, a defense attorney can file motions to suppress or exclude the FST evidence. Even when the evidence isn’t excluded, it can often be significantly weakened through effective cross-examination.
Should I plead guilty to DUI if I failed all the field sobriety tests?
No — not without consulting a defense attorney first. Failing field sobriety tests does not automatically mean you’re guilty of DUI. These tests have well-documented reliability problems, and many people fail them for reasons completely unrelated to alcohol impairment. An experienced DUI lawyer can evaluate the specific facts of your case and determine whether the FST evidence can be challenged.
What happens at my first court appearance after a DUI arrest?
Your first court appearance after a DUI arrest in Palm Beach County takes place at the Palm Beach County Courthouse. At this hearing, the judge will address bail conditions, advise you of the charges, and determine conditions of your release. Having an attorney present at this hearing is important to argue for favorable bond conditions and begin building your defense immediately.
Can Meltzer & Bell help if I was arrested for DUI in another city in Palm Beach County?
Yes. Meltzer & Bell defends DUI cases throughout Palm Beach County, including West Palm Beach, Boca Raton, Delray Beach, Boynton Beach, Palm Beach Gardens, Jupiter, Wellington, Royal Palm Beach, Lake Worth, and all surrounding communities. The firm handles cases in the Palm Beach County Courthouse and is familiar with local prosecutors, procedures, and judges.
