DWI Defense in Lake Charles: What the State Must Prove
Fontenot Law is a Lake Charles criminal defense firm defending DWI and DUI charges in the Fourteenth Judicial District Court and throughout Calcasieu Parish. Devin Fontenot spent years as a Calcasieu Parish public defender before founding this firm — he has handled hundreds of DWI cases from both sides and knows exactly how the prosecution builds them and where the weaknesses are.
To convict on a Louisiana DWI, the state must prove that you were operating a motor vehicle while under the influence of alcohol, drugs, or a combination — or with a blood alcohol concentration of 0.08% or higher for drivers 21 and over, or any detectable level for drivers under 21. Each element of that proof is challengeable. The legality of the traffic stop, the administration of field sobriety tests, the calibration and operation of the breathalyzer, and the chain of custody for any blood draw are all potential grounds for suppression or reasonable doubt.
Under La. R.S. 14:98, a first-offense DWI in Louisiana carries up to six months in jail, fines of $300–$1,000, a 90-day license suspension, and mandatory installation of an ignition interlock device. Second and subsequent offenses carry mandatory minimum jail time, higher fines, longer suspensions, and felony exposure on a third offense. Our firm defends every level of DWI charge in Calcasieu Parish.
How We Challenge DWI Cases in Calcasieu Parish
Was the Stop Legal?
Every DWI case begins with a traffic stop. If the officer lacked reasonable suspicion to initiate the stop — meaning they had no specific, articulable facts that a traffic violation or criminal activity was occurring — the stop was unconstitutional and everything that followed may be suppressed. This is the first question we ask in every DWI case. Dash cam and body cam footage, the officer's written report, and the officer's testimony at a suppression hearing are all scrutinized carefully.
Were Field Sobriety Tests Properly Administered?
The National Highway Traffic Safety Administration has specific standards for administering the three standardized field sobriety tests — the Horizontal Gaze Nystagmus, the Walk-and-Turn, and the One-Leg Stand. Officers who deviate from those standards produce unreliable results. We examine whether the officer was properly trained, whether the instructions were correctly given, whether conditions at the scene made the tests unreliable, and whether the scoring was accurate.
Is the Breathalyzer Result Accurate?
Breathalyzer results are not infallible. Louisiana law requires the Intoxilyzer 9000 to be properly calibrated and maintained, and officers must follow specific testing protocols. We obtain calibration records, maintenance logs, and operator certification documentation. Mouth alcohol, certain medical conditions, and radio frequency interference can all produce falsely elevated readings. If the machine was not properly maintained or the test was not properly administered, the result can be challenged.
Was a Blood Draw Properly Conducted?
When blood is drawn — either voluntarily or pursuant to Louisiana's implied consent law following a refusal — the chain of custody and testing procedures must meet strict standards. The draw must be performed by a qualified person, the sample must be properly preserved, and the laboratory analysis must follow accepted protocols. Breaks in the chain of custody or deviations from testing standards can render blood results inadmissible.
DWI Consequences Beyond the Criminal Case
A DWI conviction in Louisiana affects far more than the criminal sentence. License suspension begins immediately upon arrest under implied consent — separate from the criminal case — and requires prompt action to request an administrative hearing. A conviction also triggers mandatory ignition interlock requirements, affects insurance rates, and can impact professional licenses in fields including healthcare, law, education, and commercial driving. Our firm addresses both the criminal case and the administrative license suspension simultaneously from the first day of representation.
Fontenot Law defends DWI charges throughout Lake Charles, Sulphur, Westlake, Moss Bluff, and all of Calcasieu Parish. If you were arrested for DWI, contact our office immediately — the administrative license hearing deadline is short and cannot be missed.
What Clients Say
Best attorney in town. He handled my case professionally from start to finish. Extremely thankful for everything he did — you won’t get anyone better.
Professional, courteous, and works hard for clients. All matters were handled respectfully and we could not have had better outcomes.
Frequently Asked Questions
The legal blood alcohol concentration limit in Louisiana is 0.08% for drivers 21 and over. For commercial drivers, the limit is 0.04%. For drivers under 21, Louisiana has a zero-tolerance law — any detectable alcohol level is a DUI offense. A driver can also be charged with DWI at any BAC level if the prosecution can prove actual impairment, even below 0.08%.
Yes, but refusal has consequences. Louisiana's implied consent law means that by driving on Louisiana roads, you have already consented to chemical testing if lawfully arrested for DWI. Refusing the breathalyzer triggers an automatic 365-day license suspension — longer than the suspension for failing the test. However, refusal also means there is no breathalyzer result for the state to use as evidence, which affects the prosecution's case. Our firm evaluates how refusal affects your specific situation.
A DWI conviction in Louisiana stays on your criminal record permanently unless expunged. Louisiana law allows expungement of a first-offense DWI conviction after a five-year waiting period from the completion of the sentence, provided no subsequent DWI convictions occurred. Second and subsequent DWI convictions are not eligible for expungement. Our firm advises clients on expungement eligibility after the waiting period.
After a DWI arrest in Louisiana, the arresting officer typically confiscates your license and issues a temporary permit. You have 30 days to request an administrative hearing with the DMV to challenge the suspension — if you do not request the hearing within that window, your license is automatically suspended. This administrative process runs parallel to the criminal case and requires immediate attention. Our firm handles both simultaneously.
No — a first-offense DWI in Louisiana is a misdemeanor, carrying up to six months in jail, fines of $300 to $1,000, a 90-day license suspension, and mandatory ignition interlock. A second offense is also a misdemeanor but with a mandatory minimum jail sentence. A third DWI offense within ten years is a felony with mandatory prison time. A DWI that causes serious bodily injury or death is a felony regardless of the number of prior offenses.