Texas Boating While Intoxicated (BWI) Lawyer

How Do You Get Out of Jail After a BWI Arrest?

A first or second BWI is a misdemeanor, so release usually comes quickly, often on a personal recognizance or low cash bond commonly between $500 and $5000. Conditions can include no alcohol, and an interlock if the reported BAC was high or there is a prior.

The 15-day license deadline still applies

Even though a BWI happens on the water, it triggers the same Administrative License Revocation process as a road DWI. You have 15 days from the notice of suspension to request an ALR hearing, or your driver’s license is suspended automatically. The hearing also lets your lawyer question the arresting officer under oath early. Note that ALR affects your driver’s license, not your boating privileges, which run through a separate Texas Parks and Wildlife process.

What Should You Do Right Now?

BWI evidence is built in unusual conditions, and the details fade fast. In order:

• Request your ALR hearing within 15 days of notice of suspension. It protects your driver’s license and creates an early, sworn look at the officer.
• Note which agency made the arrest. A Parks and Wildlife game warden, a county marine unit, and the Coast Guard each follow different protocols, and that matters to the defense.
• Write down the on-water conditions. Hours on the boat, sun and heat, wave and wake action, and what you ate and drank. These explain balance and eye-movement findings that are not about alcohol.
• Stop talking about the arrest. Beyond identifying yourself, say nothing to officers or on social media.

Call a lawyer immediately. Early work on the stop and the testing shapes everything after.

What Is Boating While Intoxicated in Texas?

Under Penal Code §49.06, you commit BWI by operating a watercraft in a public place while intoxicated, the same intoxication standard used for a road DWI: a BAC of 0.08 or higher, or the loss of normal mental or physical faculties.

Who makes BWI arrests

Enforcement is led by Texas Parks and Wildlife game wardens, who have statewide jurisdiction on the water. County sheriff marine units, local police on their lakes, and DPS officers also make BWI arrests, and on navigable federal waterways the U.S. Coast Guard has concurrent jurisdiction. Which agency made the arrest decides which protocols governed the investigation and who can be cross-examined.

What Evidence Do Prosecutors Need to Convict You?

The State must prove you operated a watercraft in public while intoxicated. The evidence looks like a DWI but is gathered in conditions that undercut it.

Field sobriety tests. The standard roadside tests were validated on dry, stable ground, not on a boat or a dock right after hours on the water. The body’s balance system stays disrupted after a day afloat, the familiar “sea legs,” which can produce the same nystagmus and sway officers read as intoxication.

The chemical test. Breath or blood, with the same vulnerabilities as any DWI: calibration, the observation period, the blood draw and storage, and the chain of custody.

The stop and the officer’s observations, which on the water raise their own questions about authority and conditions.

What Are the Penalties for a BWI in Texas?

• First BWI: Class B misdemeanor, up to 180 days in jail and a fine up to $2,000. Enhanced to a Class A, up to 1 year and $4,000, if BAC was 15 or higher.
• Second BWI: Class A misdemeanor, 30 days to 1 year and a fine up to $4,000.
• Third or subsequent BWI: third-degree felony, 2 to 10 years and a fine up to $10,000.
• BWI with a child passenger under 15 (§49.061): state jail felony, 180 days to 2 years and up to $10,000, regardless of BAC.
• BWI causing serious injury is intoxication assault, a third-degree felony; causing a death is intoxication manslaughter, a second-degree felony, 2 to 20 years, with Bentley’s Law support obligations.

BWI convictions also count as priors for future DWI or BWI enhancement, so a BWI today can raise the stakes on a road DWI later.

Can You Fight a BWI?

Yes, and BWI cases often have more openings than a road DWI because the evidence was gathered in conditions that work against the State. Realistic outcomes include dismissal when the stop exceeded its lawful scope or the science fails, reduction, and acquittal at trial. The marine setting itself, where field tests were never validated, is a recurring defense.

No lawyer can promise a result, and you should be wary of one who does. But a balance or eye-movement finding taken right off a boat, and a breath or blood number, are both things to be tested, not a verdict.

How Is a BWI Different From a DWI?

The penalties are the same, but the case is built differently. Officers do not pull a boat over the way they stop a car; they may approach for a water-safety inspection that the law allows without reasonable suspicion, so the initial contact is often lawful even without the articulable facts a traffic stop needs. The field sobriety tests, validated only on dry land, lose much of their meaning on the water. And the ALR suspension reaches your driver’s license, not your boating privileges, which are handled separately.

That different investigation is exactly where a BWI defense lives. See our first-offense DWI page for how the road charge compares.

How We Defend BWI Cases

We expose the marine field tests

The standard tests were never validated for a moving deck or a dock right after a day on the water, where normal vestibular disruption mimics impairment. Deandra Grant is a trained SFST instructor who administers and grades the ACS-CHAL and DUIDLA certification exams, and she devotes a chapter of The Texas DWI Manual to BWI. That lets us show exactly where the officer’s evaluation broke down.

We test the scope of the stop

A water-safety inspection is one thing; a detention to investigate intoxication is another and needs reasonable suspicion. Under Texas Code of Criminal Procedure Article 38.23, evidence from a detention that exceeded its lawful scope is suppressible.

We read the blood with science

Managing Partner Deandra Grant holds a Master’s Degree in Pharmaceutical Science and the ACS-CHAL Forensic Lawyer-Scientist designation, and Partner Douglas Huff holds the same designation. BWI blood is analyzed like DWI blood, and we review the preservative, fermentation risk, chain of custody, and method. The rising BAC defense applies on the water just as it does on the road.

We pin down the agency protocols

A game warden, a county marine deputy, and a Coast Guard officer follow different procedures and training. We match the officer’s actual certification and protocol against what the case requires.

Do You Really Need a Lawyer for a BWI?

A BWI is not a ticket. It carries the same jail exposure, fine, and license suspension as a road DWI, it counts as a prior for future cases, and on a third offense or with a child aboard it becomes a felony. A quick plea locks all of that in based on evidence gathered in conditions that often do not hold up.

The value of counsel here is the ability to attack the marine field tests, the scope of the stop, and the blood science together. A BWI is a forensic case with a setting the State would rather you not examine.

How Long Does a BWI Case Take?

Most BWI cases run roughly 6 to 18 months from arrest to resolution, with contested blood cases longer. The case moves through arrest and bond, the ALR hearing within weeks, then discovery, the agency’s records, the blood analysis, and any suppression motions before a plea, dismissal, or trial.

Slower is often better. Pulling the records and litigating the stop and the field tests takes time, and that work is what produces dismissals and reductions. We keep you updated at each step.

How Much Does a BWI Defense Cost?

The fee depends on the county and the lake, whether the case involves blood that needs independent review, the level of the charge, and whether it resolves before trial. We quote a flat fee after a free consultation, so you know the investment up front.

Weigh it against what a BWI conviction costs: jail exposure, the fine, a license suspension, higher insurance, and a prior that can enhance any future DWI or BWI.

Where BWI Cases Are Heard Across Texas

A misdemeanor BWI is heard in the county courts at law of the county where the lake or river sits, and many North Texas reservoirs straddle county lines, which can affect where a case lands. Cases on Dallas-area waters often run through the Frank Crowley Courts Building, Tarrant-area waters through the Tim Curry Criminal Justice Center, and lakes in Collin, Denton, Rockwall, and McLennan Counties through their county courts. Felony BWI cases are heard in the district courts.

We appear in these courthouses every week. See our courthouse guides for what to expect at each one.

What Are the Long-Term Effects of a BWI?

Your record. A BWI conviction is a permanent criminal record, a misdemeanor on the first two offenses and a felony on a third, and it cannot be expunged.

Future charges. A BWI counts as a prior for both DWI and BWI enhancement, so it raises the stakes on any later intoxication case on the water or the road.

License and insurance. The ALR suspension affects your driver’s license, and a conviction commonly raises insurance costs for years.

Professional licensing. As with a DWI, licensed professionals can face separate board consequences from a BWI conviction, independent of the criminal case.

BWI FAQs

Is a BWI the same penalty as a DWI?

Yes. BWI is prosecuted under the same penalty structure as DWI: a first is a Class B misdemeanor, a second a Class A, and a third a felony, with the same enhancements for high BAC, a child passenger, injury, or death.

Can a game warden stop my boat without any suspicion?

For a water-safety inspection, yes, the law allows it without reasonable suspicion. But detaining you to investigate intoxication is different and must be supported by reasonable suspicion of a crime, which is a frequent point of challenge.

Do field sobriety tests even work on a boat?

They were not validated for the water. The standard tests assume a stable, dry surface, and hours on a moving boat disrupt balance and eye movement on their own. That sea-legs effect can look like impairment when it is not.

Will a BWI suspend my driver’s license?

It can. A BWI triggers the same ALR process as a road DWI, so failing or refusing the test can suspend your driver’s license unless you request a hearing within 15 days. Your boating privileges are handled separately.

Does a BWI count against me if I later get a DWI?

Yes. A BWI conviction is a qualifying prior for DWI enhancement, so a BWI now can turn a future road DWI into a second or third offense with much higher penalties.

Can the Coast Guard arrest me on a Texas lake?

On navigable federal waterways the Coast Guard has concurrent jurisdiction and can stop, investigate, and arrest independently. Which agency acted affects the protocols that governed your case.

Talk to a Lawyer Who Knows the Water and the Science

A BWI is a forensic case built in conditions that work against the State, the marine field tests, the scope of the stop, and the blood. Deandra Grant Law challenges each one, and literally wrote the BWI chapter in The Texas DWI Manual. We have offices in Dallas, Fort Worth, Allen, Denton, Rockwall, and Waco, with more than 30 years in North and Central Texas courts.

Call (214) 225-7117 for a free, confidential consultation. Available 24/7. No cost, no obligation.

Reviewed by Deandra Grant, Managing Partner, ACS-CHAL Forensic Lawyer-Scientist with an MS in Pharmaceutical Science and a Graduate Certificate in Forensic Toxicology.