I’m Rocky Brancato, founder of The Brancato Law Firm, P.A., a Tampa criminal defense firm. I am a member of the National College for DUI Defense, I taught at the police academy, and I have taken more than 150 jury trials to verdict — and DUI manslaughter is the case our attorneys treat as the most defensible serious charge in Florida, because it is built entirely on scientific evidence that can be tested, challenged, and suppressed.

How Does Florida Define DUI Manslaughter?

DUI manslaughter has three parts under section 316.193(3), Florida Statutes: the driver was under the influence (impaired normal faculties, or a blood- or breath-alcohol level of .08 or above); the driver operated a vehicle; and, by reason of that operation, the driver caused or contributed to causing the death of a human being or an unborn child.

Notice what is missing: intent. No one charged with DUI manslaughter meant to hurt anyone, and the law does not require that they did. Notice also what is not missing: causation.

The “contributes to” language means the State can convict even when the other driver shares fault — but it cannot convict on impairment alone. If the crash would have happened exactly the same way with a sober driver behind your wheel — the other car ran the red light, the pedestrian stepped out from between parked cars, the motorcycle crossed the center line — the death was not caused by reason of your operation, and our attorneys have built entire defenses on that distinction.

What Are the Penalties for DUI Manslaughter in Florida?

The 4-year mandatory minimum means exactly what it says: no matter how sympathetic the facts, a judge cannot go below four years in prison on a DUI manslaughter conviction. And the sentencing scoresheet usually demands far more — the death itself adds victim-injury points that typically put the lowest permissible sentence above ten years before a single aggravator is considered. That gap between the 4-year floor and the scoresheet’s number is one of the most important battlegrounds in these cases.

Beyond prison, a DUI manslaughter conviction carries permanent revocation of your driver license under section 322.28 — the court must impose it, and if the court doesn’t, the DHSMV will. The one door the Legislature left open: under section 322.271(4), a driver with no prior DUI-related convictions may petition for hardship reinstatement five years after the revocation or the end of incarceration, whichever is later — after proving five drug-free years, no unlicensed driving, and completion of DUI school, with an employment-restricted license for the first year.

How Does Sentencing Actually Work in a DUI Manslaughter Case?

Three different numbers control a DUI manslaughter sentence, and understanding the space between them is where defense work pays off:

The scoresheet is where many families are blindsided: they hear “4-year minimum” and expect a number near it, then learn the Criminal Punishment Code calculation demands more than a decade. But the scoresheet is not untouchable. Florida law recognizes grounds for a downward departure — and in these cases, the mitigation is often real: a defendant with no record, genuine remorse, cooperation, and a crash in which the victim’s own conduct played a role. Our attorneys build the sentencing case in parallel with the trial defense, because in a charge with a mandatory minimum, the plea negotiations are conducted in the shadow of both numbers.

A conviction also brings the DUI-specific consequences that follow any conviction under section 316.193 — among them mandatory probation conditions including a licensed DUI program and substance abuse treatment, community service, and vehicle impoundment rules — layered on top of the prison term and the permanent license revocation discussed above.

What Must the State Prove to Convict You?

Three elements, each beyond a reasonable doubt:

1. Impairment or unlawful alcohol level. Proven through the blood or breath test, officer observations, field sobriety exercises, and video. Every link in that chain — the stop, the draw, the lab, the analyst — is contestable.
2. Operation of a vehicle. Usually undisputed, but not always: in multi-occupant crashes and ejection cases, who was driving becomes the entire trial.
3. Causation. By reason of that operation, the driver caused or contributed to causing the death. This is where accident reconstruction lives — speed, angles, timing, right-of-way, and what the other vehicle was doing.

Can You Fight the Blood Test in a DUI Manslaughter Case?

September 2026 update: Yes — and the ground shifted on September 2, 2026. In State v. Marlin, No. 4D2025-1448 (Fla. 4th DCA Sept. 2, 2026), the Fourth District affirmed suppression of a forced blood draw in a fatal Turnpike crash, held that the natural dissipation of alcohol is never a per se exigency, and receded from the “probable cause” language in State v. Acevedo that prosecutors had been treating as an exception to the warrant requirement. Absent actual consent or case-specific exigent circumstances, a warrant is required — regardless of Florida’s implied consent law. Our full analysis is in can police take your blood without a warrant in Florida.

Yes — and in our firm’s experience the blood evidence is where DUI manslaughter cases most often crack. Florida’s appellate courts spent 2025 reminding trial judges how narrow the State’s authority to take blood really is. In State v. Marshall, No. 4D2024-1115 (Fla. 4th DCA Aug. 13, 2025), a driver’s blood was drawn twice at an accident scene, and the case turned on whether the draw was lawful — the appellate court sent it back because the trial court’s findings on consent and implied consent contradicted each other.

Marshall collects the rules that matter. A mandatory blood draw under section 316.1933 requires probable cause of two things at the roadside — that the driver was impaired and that the driver’s vehicle caused death or serious bodily injury. Implied consent applies only to blood taken based on probable cause of a qualifying DUI offense. And when the State claims the driver voluntarily consented, the State carries the burden of proving voluntariness under the totality of the circumstances — mere submission to authority is not consent.

The practical translation: in a case where everything flows from a number in a vial, the defense examines how that vial was filled. Was there probable cause of causation at the moment of the draw, or just a hunch? Was “consent” given by a person in shock, in handcuffs, or in an ambulance? Was the kit expired, the draw non-medical, the chain of custody clean? Our attorneys litigate these motions in Hillsborough County courtrooms, and a suppressed blood result changes everything that follows.

How Do We Defend DUI Manslaughter Charges?

By attacking each element with its own expert. On causation, we retain accident reconstruction experts to analyze the physics of the crash — because “impaired driver” plus “someone died” does not equal “the impairment caused the death,” and juries understand that distinction when it is shown to them with data. On impairment, we litigate the stop, the draw, and the lab: suppression of the blood result, rising-alcohol timelines, and the difference between the level at testing and the level at driving. On operation, where the facts allow it, we hold the State to its proof of who was behind the wheel. And on sentencing, we fight the scoresheet — victim-injury points, downward departure grounds, and the space between the statutory minimum and the State’s demand.

One more thing our attorneys do from day one: preserve the evidence that helps you. Vehicles get crushed, event data recorders get overwritten, and surveillance video gets deleted on retention schedules measured in days. A preservation demand in the first week is often worth more than any motion filed a year later.

What Is the Difference Between DUI Manslaughter and Vehicular Homicide?

They are alternative theories for the same tragedy, with different elements. DUI manslaughter requires impairment but not bad driving — a legally intoxicated driver who causes a fatal crash can be convicted even if the driving itself was unremarkable. Vehicular homicide (§ 782.071) requires reckless driving but no impairment. Prosecutors often charge both from one crash; a defendant cannot be convicted of both for the same death, and the interplay between the two counts is itself a defense opportunity — each theory concedes the weakness of the other.

What Should You Do If You Are Under Investigation for DUI Manslaughter?

Retain counsel immediately — before the charging decision, not after. DUI manslaughter charges are often filed weeks or months after the crash, while the traffic homicide investigator waits for toxicology and reconstructs the scene. That window is when the defense can still inspect the vehicles, download the event data recorders, photograph the roadway, and demand preservation of every recording. It is also when statements do the most damage: what you tell the traffic homicide investigator — even a polite explanation at the hospital — becomes evidence. Our attorneys step in during the investigation, handle all law-enforcement contact, and put our own experts on the physical evidence before it disappears.

Frequently Asked Questions About DUI Manslaughter in Florida

What is the mandatory minimum sentence for DUI manslaughter in Florida?

Four years in prison — a judge cannot sentence below it on a conviction, no matter the circumstances. The realistic exposure is higher: the maximum is 15 years (30 for the first-degree versions), and the sentencing scoresheet’s victim-injury points usually put the lowest permissible sentence well above the 4-year floor. Our attorneys fight both numbers — the conviction itself and the scoresheet math.

Can DUI manslaughter charges be reduced or dismissed?

Yes, when an element fails. A suppressed blood test can gut the impairment element; reconstruction evidence can break causation; and either can drive a reduction to DUI, reckless driving, or another lesser offense. The Brancato Law Firm, P.A. builds these cases around independent expert work from the first week, because that is when the evidence that wins them still exists.

Will I lose my license permanently?

A DUI manslaughter conviction requires permanent revocation — but permanent does not always mean forever. If you have no prior DUI-related convictions, section 322.271(4) lets you petition for hardship reinstatement five years after the revocation or your release from prison, whichever is later, after DUI school and five clean years. Our attorneys plan for that petition as part of the case, not as an afterthought.

What if the other driver caused the crash?

Then causation — an element the State must prove beyond a reasonable doubt — is in play. The statute’s “causes or contributes to causing” language tolerates shared fault, but it still requires that your operation contributed to the death; if the crash would have happened the same way with a sober driver in your seat, that element fails. This is precisely what accident reconstruction experts are for, and it is the first thing our firm evaluates.

Can the police take my blood without my consent?

Only within narrow limits. A mandatory draw under section 316.1933 requires probable cause at the scene that you were impaired and that your vehicle caused death or serious bodily injury; anything less requires a warrant or genuinely voluntary consent, which the State must prove — submission to an officer’s authority is not consent. As the Fourth District’s 2025 decision in State v. Marshall shows, courts scrutinize these draws closely, and a bad draw means a suppression motion.

Does Trenton’s Law apply to DUI manslaughter?

Yes. A DUI manslaughter conviction is a first-degree felony — a 30-year maximum — if you have a prior conviction for DUI manslaughter, BUI manslaughter, vehicular homicide, or vessel homicide. Whether a prior actually qualifies is a legal question worth litigating, and The Brancato Law Firm, P.A. scrutinizes every alleged qualifying prior. Call (813) 727-7159 for a free, confidential review of your case.

For more about our defense strategies, visit our Tampa DUI Lawyer page.

Related reading: What Is DUI in Florida? · What Is Vehicular Homicide in Florida? · What Is Breathalyzer Refusal in Florida? · What Is Leaving the Scene of an Accident in Florida? · What Happens After a DUI Arrest in Hillsborough County?

The Evidence That Wins These Cases Disappears First

If you or a loved one is facing a DUI manslaughter investigation or charge in Hillsborough, Pinellas, or Pasco County, the blood evidence, the vehicles, and the electronic data are being processed right now — and the State’s version of events hardens a little more every week you wait. Call the attorneys of The Brancato Law Firm, P.A. — founded by Tampa Criminal Defense Attorney Rocky Brancato — at (813) 727-7159 before you give any statement. The mandatory minimum is four years; the case deserves your best defense from day one.

The Brancato Law Firm, P.A.
620 E. Twiggs Street, Suite 205, Tampa, FL 33602
(813) 727-7159
Serving Hillsborough, Pinellas, and Pasco Counties

The Brancato Law Firm, P.A. is a Tampa-based criminal defense practice. We are not affiliated with any other Brancato-named law firms.

I’m Rocky Brancato, founder of The Brancato Law Firm, P.A., a Tampa criminal defense firm. I’m a member of the National College for DUI Defense and a former police academy instructor who taught the very stop and arrest procedures these cases turn on — and today our attorneys defend refusal charges and the DUI cases that come with them across Hillsborough, Pinellas, and Pasco Counties.

What Happens the Moment You Refuse the Breath Test?

Three separate consequences begin the moment you say no. First, under Florida’s implied consent law, section 316.1932, Florida Statutes, your refusal is admissible against you in the DUI case itself — the prosecutor will argue you refused because you knew you would fail. Second, the Department of Highway Safety and Motor Vehicles suspends your license administratively: one year for a first refusal, 18 months for a second or subsequent one. Third — and this is the change that still surprises drivers — the refusal is now a separate crime of its own, even if it is your first.

Implied consent is the trade built into every Florida driver license: by driving on Florida roads, you are deemed to have agreed to submit to an approved breath or urine test after a lawful DUI arrest. Refusing does not undo the trade — it triggers the penalty side of it.

Is a First Refusal Really a Crime Now?

Yes. Before October 1, 2025, a first refusal carried only the administrative suspension; the crime of refusal applied only to drivers whose license had already been suspended for refusing once before. Trenton’s Law changed that. Under the current version of section 316.1939, Florida Statutes, a first refusal is a second-degree misdemeanor, and a second or subsequent refusal is a first-degree misdemeanor — in addition to the DUI charge and the suspension.

One detail with real teeth: the statute counts a prior refusal from the water as well as the road. A driver who was previously fined under section 327.35215 for refusing a breath test after a boating under the influence stop faces the first-degree misdemeanor version on their first roadside refusal — the two systems share a memory. Our article on BUI in Florida covers the marine side of implied consent.

What Must the State Prove to Convict You of Refusal?

Section 316.1939 is unusually explicit about its elements, and every one of them is a checkpoint our attorneys test. To convict, the State must prove each of the following:

1. Probable cause. The arresting officer had probable cause to believe you were driving or in actual physical control of a vehicle while impaired.
2. A lawful arrest. You were lawfully arrested for DUI under section 316.193 before the test was requested (unless the request fell under a statutory exception).
3. The suspension warning. You were told that refusing would cost your license for one year — or 18 months if you had refused before.
4. The crime warning. You were told that refusal itself is a crime — the statute now requires the officer to spell out the misdemeanor consequences.
5. A knowing refusal after the warnings. Only after being properly informed did you refuse the test.

Each element is a place these cases fall apart. If the stop was bad, the arrest was not lawful — element two fails, and the analysis in our article on how long a traffic stop can last in Florida frequently supplies the ammunition. If the implied consent warnings were incomplete, garbled, or delivered in a language the driver could not understand, elements three and four are in play. Body-camera audio answers most of these questions — which is why we pull it in every refusal case before anything is overwritten.

Can a Refusal Be Suppressed? What Did Repple Change?

Suppression is still very much alive — but one popular argument is now dead, and drivers should know which is which. In State v. Repple, 428 So. 3d 59 (Fla. Dec. 30, 2025), a Maitland officer lawfully arrested a driver for DUI inside the city, then drove him to a testing facility outside the city limits and requested the breath test there. The defense argued the officer had no authority to request the test outside his own jurisdiction. The Florida Supreme Court disagreed: the implied consent law necessarily implies the authority to complete the testing process that a lawful in-jurisdiction arrest begins, even at a facility outside the municipality. (Read the opinion.)

The Sixth District applied that holding directly to a refusal within months. In State v. Hart, No. 6D24-2164 (Fla. 6th DCA May 22, 2026), the trial court had suppressed a driver’s refusal because the breath test was requested outside the arresting officer’s municipality; the appellate court reversed, citing Repple. (Read the opinion.)

What survives Repple is everything that matters more: an unlawful stop, an arrest without probable cause, defective implied consent warnings, and disputes over whether what you did was actually a “refusal” at all. A driver who tried to blow and could not produce an adequate sample, or who asked clarifying questions and was marked refused, has a factual fight worth having — juries understand the difference between defiance and confusion.

What Actually Counts as a “Refusal”?

Less than most drivers assume — and the label the officer writes on the form is not the last word. The statute requires a refusal after proper warnings, and in practice the word “refusal” gets attached to a wide range of conduct: a driver who says nothing at all, a driver who asks to call a lawyer first, a driver who agrees to blow and then cannot produce a sample the machine will accept, and a driver who blows once and declines the second required sample. Whether each of those is a knowing refusal is a fact question, and fact questions are where defense work lives.

The pattern our attorneys see most often in Hillsborough County cases is the “incomplete sample” refusal: the machine logs a volume error, the operator announces a refusal, and the paperwork hardens around that word. Medical conditions — asthma, COPD, panic — can make an adequate sample genuinely difficult, and breath-test operators are trained to distinguish can’t from won’t. When the video shows a driver visibly trying, the refusal charge is triable, and the administrative suspension is contestable on the same ground. The same is true of the confused driver who was warned in rapid-fire legalese: the statute demands that the consequences be communicated, not merely recited.

What About Your License? The 10-Day Clock

The administrative suspension is separate from the criminal case, and it moves much faster. After a refusal, the officer typically takes your license on the spot and issues a citation that acts as a 10-day temporary permit. You have 10 days to demand a formal review hearing with the DHSMV; miss the window and the full suspension takes hold automatically — one year for a first refusal, 18 months for a repeat.

The formal review hearing is more than a chance to save your license. It is the earliest opportunity to put the officer’s account under oath, months before the criminal case reaches a courtroom. Our attorneys use these hearings to pin down the timeline, the claimed driving pattern, and the exact words of the implied consent warning — testimony the officer is then stuck with at the suppression hearing and at trial. Whatever happens administratively does not decide the criminal case: the statute says so expressly.

For more about our defense strategies, visit our Tampa DUI defense page.

Should You Refuse the Breathalyzer in Florida?

There is no one-size answer anymore, and anyone who gives you one is guessing. Before Trenton’s Law, many defense lawyers quietly advised that a first-time driver had little to lose by refusing: the State lost its number, and the only price was a suspension. That calculus is gone. Today refusal buys the State a second criminal charge, an aggravating talking point at the DUI trial, and a full year without your license — while still not guaranteeing the State lacks impairment evidence, because officers routinely document driving pattern, field exercises, and video.

What we can say from experience: the decision is made in a stressful moment, usually without counsel, and our job starts wherever yours ended. A refusal case is defensible. A test-failure case is defensible. The worst position is doing nothing with the 10-day window.

How Does a Refusal Play at the DUI Trial?

The prosecutor will use it — section 316.1932 makes the refusal admissible, and the standard argument is consciousness of guilt: an innocent driver would have blown. But the argument cuts only as deep as the surrounding facts let it. A refusal case, by definition, is a case with no number — no breath reading, no bright-line proof of impairment — which means the State’s case rests entirely on the officer’s observations, the driving pattern, the field exercises, and the video. Every weakness in those becomes the answer to the refusal argument: a driver who walks the line cleanly on camera and then declines to trust the machine does not look conscious of guilt; he looks skeptical of a process he did not understand.

That is why our attorneys treat the refusal and the DUI as one integrated defense rather than two cases. The same body-camera footage that defeats the “impairment” narrative also reframes the refusal, and the same warning defects that undermine the criminal refusal count knock out the administrative suspension. In the 13th Judicial Circuit, where breath testing runs through the sheriff’s central breath testing facility, the maintenance and inspection records of the specific instrument are discoverable — and a machine with a history of volume errors is powerful context for an “incomplete sample” refusal.

September 2026 update — how far the prosecutor can go. The Fourth District has just drawn the line. In Paul v. State, No. 4D2025-0899 (Fla. 4th DCA Sept. 2, 2026), the prosecutor told the jury in rebuttal: “If he wasn’t impaired, there is one sure way he could have shown us, isn’t there? He could have done the roadside exercises, but he refused. He could have definitely given us a breath sample, but he refused.” The defense objected that the comment shifted the burden of proof. The court affirmed the DUI conviction, holding that because the refusals were properly admitted under section 316.1932, “the state’s reference to those refusals was a proper comment on both the evidence and the defendant’s consciousness of guilt,” and that “impairment and consciousness of guilt may be inferred from the defendant’s refusal to submit to a breath-alcohol test.” The prosecutor may even argue the more specific point that the driver refused because he knew his breath-alcohol level would be over the limit. (Read the opinion.)

Two things in Paul still work for the defense. First, the court said the State “should have been more careful to avoid using the words ‘he could have shown us,’” and saved the comment only because the prosecutor immediately pivoted to consciousness of guilt and had “repeatedly emphasized it had the burden to prove the defendant guilty beyond a reasonable doubt.” A prosecutor who lingers on what the driver “could have shown” without that pivot, or who never restates the burden, is in different territory. Second, the court applied harmless-error review under State v. DiGuilio, which puts the burden on the State to prove beyond a reasonable doubt that the comment did not contribute to the verdict — a standard available only because defense counsel objected. The lesson for trial practice is unchanged: object to every burden-shifting turn of phrase, and make the State earn the consciousness-of-guilt argument with its own evidence rather than with what the driver declined to do.

Real Results in Breathalyzer Refusal Cases

Case Study — Not Guilty on DUI Refusal and Resisting Arrest: We represented a client charged with DUI (refusal) and resisting arrest without violence. Rocky presented scene video to the jury demonstrating the client showed no signs of impairment. Rocky further argued the arresting officer was overly aggressive and the client did not resist. The jury returned a verdict of Not Guilty on both counts. Past results do not guarantee future outcomes.

What Should You Do in the First 10 Days After a Refusal Arrest?

Use the window. Demand the formal review hearing — through counsel — before day 10, both to fight the suspension and to lock in the officer’s testimony early. Ask your attorney about eligibility for a business-purposes-only permit so you can keep driving to work while the case is fought.

Preserve everything: the citation, the names of passengers or witnesses, and your own written timeline of the stop while it is fresh — what was said, in what order, and exactly how the “refusal” happened. Body-camera and dash-camera video make or break the warning elements, and retention schedules are short; a preservation demand in week one costs nothing and can win the case in month six. And do not discuss the stop with anyone but your lawyer — in a case where the crime is a conversation, your words are the evidence.

Frequently Asked Questions About Breathalyzer Refusal in Florida

Is refusing a breathalyzer a crime in Florida?

Yes. Since October 1, 2025, a first refusal of a lawfully requested breath or urine test is a second-degree misdemeanor, and a second or subsequent refusal is a first-degree misdemeanor under section 316.1939. That is in addition to the administrative license suspension and the DUI charge itself. The attorneys at The Brancato Law Firm defend all three fronts together, because evidence that weakens one usually weakens the others.

Can I get my license back after a refusal suspension?

Often, at least for essential driving. After the formal review process, many drivers qualify for a business-purposes-only permit covering work, school, church, and medical needs. Eligibility depends on your history — repeat refusals face longer hard suspensions — so bring your full driving record to the first consultation.

What if the officer never read me the implied consent warnings?

Then the State has an elements problem. Section 316.1939 requires proof that you were told both the suspension consequences and that refusal is itself a crime, before you refused. Incomplete or garbled warnings defeat the refusal charge and give our attorneys leverage in the DUI case as well; body-camera audio usually settles what was actually said.

Does the new law apply to a refusal from before October 2025?

No — Trenton’s Law governs refusals that occur after its effective date of October 1, 2025. But an older refusal still counts against you in other ways: it supports the 18-month suspension and elevates a new refusal to a first-degree misdemeanor.

Can my old boating refusal make a roadside refusal worse?

Yes. The statute expressly elevates a refusal to a first-degree misdemeanor for a driver previously fined under section 327.35215, the boating-under-the-influence refusal provision. Florida treats the road and the water as one record for refusal history.

Will the jury hear that I refused?

In most cases, yes — section 316.1932 makes refusal admissible in the criminal proceeding, and prosecutors argue it shows consciousness of guilt. The defense answer is context: confusion, medical issues, distrust of the machine, or a botched warning. The Brancato Law Firm, P.A. has won refusal trials by showing the jury the video and letting them see the difference between a guilty conscience and a bad arrest.

If you refused a breath test anywhere in Tampa Bay, the attorneys of The Brancato Law Firm, P.A. — founded by Tampa Criminal Defense Attorney Rocky Brancato — need to hear from you inside the 10-day window. Call (813) 727-7159 today: the formal review deadline does not wait for the criminal case, and the earliest hearing is often where the whole defense is built.

The Brancato Law Firm, P.A.
620 E. Twiggs Street, Suite 205, Tampa, FL 33602
(813) 727-7159
Serving Hillsborough, Pinellas, and Pasco Counties

The Brancato Law Firm, P.A. is a Tampa-based criminal defense practice. We are not affiliated with any other Brancato-named law firms.