A DWI arrest in Houston sets off a specific legal and administrative process — one that moves quickly and involves two separate systems running at the same time. Understanding how those systems work, and what shapes outcomes within them, helps people make sense of what's ahead.
Texas uses the term Driving While Intoxicated (DWI) rather than DUI. The legal standard is operating a motor vehicle in a public place while intoxicated — defined as having a blood alcohol concentration (BAC) of 0.08% or higher, or having lost normal use of mental or physical faculties due to alcohol, drugs, or a combination of both.
Texas does have a separate DUI classification, but it applies specifically to minors with any detectable amount of alcohol — a distinct offense from adult DWI. When most Houston residents say "DUI lawyer," they're typically referring to someone who handles adult DWI cases.
This is the detail that catches many people off guard. A Houston DWI arrest triggers both a criminal case and an administrative license action — and they run on different timelines, through different agencies.
The criminal case is handled through the Harris County court system. Charges can range from a Class B misdemeanor for a first offense to felony-level charges depending on factors like prior convictions, accident involvement, or a minor passenger in the vehicle.
The administrative license action is handled by the Texas Department of Public Safety (DPS) through a process called an Administrative License Revocation (ALR). If you were arrested for DWI and either failed or refused a breath or blood test, your license can be suspended — and you typically have a short window (often cited as 15 days from arrest) to request a hearing to contest it. Missing that window generally results in an automatic suspension.
These two processes can have different outcomes. Winning one doesn't guarantee winning the other.
A DWI defense attorney operating in Houston typically focuses on several distinct areas:
Texas also has a statutory surcharge program tied to DWI convictions that can result in annual fees for several years — something attorneys often flag as part of the full cost picture of a conviction.
No two DWI cases follow the same path. The variables that tend to matter most include:
| Factor | Why It Matters |
|---|---|
| BAC level at arrest | Higher BAC can affect charge severity and negotiation leverage |
| Test refusal vs. failure | Refusal triggers its own ALR consequences and affects evidence available |
| Prior DWI convictions | Second and third offenses carry significantly higher penalties under Texas law |
| Accident or injury involved | Can elevate charges to intoxication assault or intoxication manslaughter |
| Minor in the vehicle | Adds a separate charge under Texas Penal Code |
| Stop legality | Whether the initial traffic stop was lawful affects suppression arguments |
| Blood vs. breath evidence | Each has different procedural requirements and challenge points |
Texas DWI penalties vary by offense level. A first-offense DWI is generally a Class B misdemeanor, carrying up to 180 days in jail and fines up to $2,000, plus surcharges and license suspension. A second offense elevates to a Class A misdemeanor. A third offense becomes a third-degree felony.
Aggravating factors — high BAC (0.15 or above), accidents causing injury, or child passengers — can change the charge classification entirely. Intoxication assault and intoxication manslaughter are felony-level charges with substantially different sentencing exposure.
These ranges represent what the law allows — actual outcomes depend heavily on case-specific facts, criminal history, and how the case is resolved.
Texas does not allow deferred adjudication for DWI under most circumstances. This is a meaningful distinction from other states and other offense types in Texas. For most DWI defendants, a guilty plea means a conviction on the record — not a deferral that can later be dismissed. There are limited exceptions, but they apply narrowly. This makes the initial defense strategy particularly consequential.
Harris County is one of the largest counties in the country, and its court system handles an enormous volume of DWI cases. Houston Municipal Court handles Class C matters, but DWI cases typically move through Harris County Criminal Courts at Law (for misdemeanors) or district courts (for felonies). Each court has its own procedures, judges, and norms — factors that experienced local practitioners navigate routinely.
How a DWI case resolves in Houston depends on the specific facts of the stop, the evidence collected, the charge level, the defendant's history, and the decisions made early in the process — including whether the ALR hearing was requested in time. General information about how the system works is a starting point. Applying it accurately requires knowing the details of a specific arrest, a specific record, and a specific court.
