"A DUI charge is built on a statute, not an opinion — and every element of that statute can be challenged."
— Carolle El-Naffy
TL;DR – Florida Statute 316.193 makes it a crime to drive while your normal faculties are impaired or while your blood- or breath-alcohol level is 0.08 or higher. Penalties climb with each prior conviction and with aggravating factors like a high BAC or a minor in the car.
What Florida Statute 316.193 Actually Says
Every DUI prosecution in Florida starts with one statute: § 316.193, Florida Statutes. The state must prove two things beyond a reasonable doubt:
- You were driving or in actual physical control of a vehicle, and
- You were either impaired to the extent your normal faculties were affected, or you had a blood-alcohol level (BAL) or breath-alcohol level (BrAC) of 0.08 or more.
Notice the word "or." The state does not have to prove a specific BAC if it can show impairment — and it does not have to prove impairment if it has a 0.08 reading. This two-track structure is why officer observations (driving pattern, field sobriety exercises, odor, speech) matter even when no breath test exists.
The Two Ways the State Proves Impairment
Impairment of normal faculties. This is the subjective track — the prosecutor relies on the officer's narrative: weaving, slurred speech, bloodshot eyes, performance on field sobriety exercises. These observations are opinion evidence and are frequently challenged.
The "per se" 0.08 limit. If a valid breath or blood test reads 0.08 or higher, you can be convicted regardless of how well you were actually driving. But "valid" is the key word — breath instruments (the Intoxilyzer 8000) must be properly maintained, calibrated, and operated, and the 20-minute observation period must be honored.
The same statute also covers DUI by chemical or controlled substances, not just alcohol.
Penalties by Offense Number
Florida grades DUI penalties primarily by how many prior convictions you have and how recent they are.
First conviction
- Fine of $500–$1,000
- Up to 6 months in jail
- 50 hours of community service
- Up to 1 year of probation
- Vehicle impoundment for 10 days
- Driver's license revocation for at least 180 days
- Mandatory DUI school and substance-abuse evaluation
Second conviction
- Fine of $1,000–$2,000
- Up to 9 months in jail
- If within 5 years of the prior: a mandatory 10 days in jail and ignition interlock for 1 year, plus a 5-year license revocation
Third conviction
- If within 10 years of a prior: a third-degree felony, mandatory 30 days in jail, fine of $2,000–$5,000, and a 10-year license revocation
- If more than 10 years later: charged as a misdemeanor with enhanced penalties
Fourth or subsequent conviction
- A third-degree felony, regardless of timing, with a minimum $2,000 fine and possible permanent license revocation
Aggravating Factors That Raise the Stakes
Section 316.193 builds in enhancements that increase fines and jail exposure:
- BAC of 0.15 or higher — fines roughly double and a longer ignition-interlock period applies
- A minor (under 18) in the vehicle — same enhanced fines and interlock requirement
- Property damage or non-serious injury — a first-degree misdemeanor
- Serious bodily injury — a third-degree felony
- DUI manslaughter — a second-degree felony, with a 4-year mandatory minimum prison sentence
The License Side: Administrative vs. Criminal
A DUI arrest triggers two separate cases. The criminal case under 316.193 is one. The other is an administrative suspension through the DHSMV — which begins immediately and runs on its own deadline. You generally have only 10 days from the arrest to demand a formal review hearing to protect your license. Missing that window forfeits a key opportunity, even before the criminal case is resolved.
Defenses to a 316.193 Charge
Because the statute has so many moving parts, there are many points of attack:
- Challenging the stop — no reasonable suspicion to pull you over
- Challenging the arrest — no probable cause to believe you were impaired
- Attacking the breath test — calibration logs, maintenance records, the 20-minute observation rule
- Field sobriety exercises — improper instructions, medical conditions, uneven surfaces, footwear
- Rising-blood-alcohol — your BAC was still climbing and was below 0.08 while you were actually driving
Related Florida Statutes
A 316.193 case rarely stands alone. Commonly related provisions include § 316.1932 (implied consent and test refusal) and § 322.2615 (administrative license suspension). Refusing a lawful breath test carries its own license consequences, separate from the DUI itself.
Charged Under 316.193 in Miami-Dade or Broward? Act Within 10 Days
The criminal penalties matter, but the 10-day license deadline comes first. Carolle El-Naffy reviews the stop, the testing, and the paperwork from day one — challenging each element the statute requires the state to prove.
Call (305) 456-7576 75 Valencia Ave, Suite 800, Coral Gables, FL Confidential consultations available
