This page was written, edited, reviewed & approved by Brian LaVine following our comprehensive editorial guidelines. Brian LaVine the Founding Partner, 10+ years of legal experience as criminal defense attorney.

Houston DWI Arraignment Lawyer
by Brian LaVine / Last Updated: October 9, 2025
Houston DWI Arraignment Lawyer

Being arrested for a DWI in Houston is a serious event that can have lasting consequences on your life. During the arraignment, you will officially face the charges against you, and it is vital to have a skilled Houston DWI arraignment lawyer by your side to guide you through this initial stage of the criminal process. A DWI arrest can result in severe penalties, including license suspension, fines, and even jail time.

At LaVine Law Firm, we specialize in DWI defense and offer aggressive representation to protect your rights from the moment of your arrest. We understand that each case is unique, and our goal is to ensure that you have the best possible defense strategy to fight the charges you face.

In Texas, a DWI charge can be more than just an inconvenience; it can result in a criminal conviction that stays on your record forever. A DWI conviction can also affect your ability to drive, your employment, and your reputation. With DWI charges, whether it’s a first-time offense or a more severe case involving manslaughter, the stakes are high. Our experienced Houston DWI arraignment lawyer is here to provide you with the legal counsel you need, from the arraignment all the way through your case’s resolution.

Table of Contents

Our Houston DWI Arraignment Lawyer Fights for Your Rights

Our Houston DWI Arraignment Lawyer Fights for Your Rights

The arraignment is the first step in your DWI case, and it’s essential to approach it with the right legal representation. At LaVine Law Firm, we understand the complexity of DWI cases and recognize the importance of preparing a strong defense from the outset. A DWI arrest in Houston, particularly in Harris County, can lead to serious consequences, such as license suspension and criminal charges. We will work closely with you to ensure that all procedures are followed correctly and that we build the best possible defense against the charges.

A DWI charge does not automatically mean a conviction. As your experienced Houston DWI defense attorney, we will review all the evidence, including the arresting officer’s probable cause, field sobriety tests, and breath or blood tests, to identify any weaknesses in the prosecution’s case. We are committed to challenging every aspect of the case, including whether the officer had reasonable suspicion for the DWI arrest and whether the blood alcohol concentration was accurately measured. With a solid defense strategy, you can avoid the harsh penalties that come with a DWI conviction in Texas.

What is a Drug DWI in Texas?

In Texas, a Drug DWI occurs when a person is found driving while impaired by any controlled substance, prescription medication, or other drugs to the point of losing their normal mental or physical faculties. This impairment can result in a DWI arrest, even if the person is not under the influence of alcohol. Under Texas DWI laws, you can be arrested for driving while intoxicated due to drugs if law enforcement believes your ability to operate a motor vehicle is compromised. At LaVine Law Firm, we understand the challenges you face when charged with a Drug DWI and are here to defend your rights.

The Legal Standard: "Not Having the Normal Use of Mental or Physical Faculties"

The legal standard for a Drug DWI in Texas is based on whether your mental or physical faculties were impaired to the point where you could no longer drive safely. Unlike alcohol, which has a clear legal limit, impairment due to drugs is much more subjective. This is why it is crucial to have an experienced Houston DWI lawyer who can effectively challenge the evidence and construct a strong defense.

Illegal Drugs vs. Legally Prescribed Medications

A key challenge in Drug DWI cases is differentiating between illegal drugs and legally prescribed medications. In Texas, you can be charged with driving while intoxicated for taking prescription drugs if they impair your ability to drive. Even if the medication is prescribed to you, it can still result in a DWI offense if it affects your ability to operate a vehicle safely.

How Drug DWI Cases Differ from Alcohol DWI Cases

How Drug DWI Cases Differ from Alcohol DWI Cases

Drug DWI defense is different from alcohol-related DWI cases in many ways, which makes it uniquely challenging. Unlike alcohol, where there is a clear legal limit (0.08 BAC), drug-related impairments rely on subjective observation and interpretation. If you’re facing a Drug DWI charge in Texas, you need a skilled and experienced DWI defense lawyer to navigate these complexities.

No Per Se Limit (Unlike the .08 BAC for Alcohol)

One of the major differences between a drug DWI and an alcohol DWI is the lack of a clear per se limit for drugs. While the legal limit for alcohol is a blood alcohol concentration (BAC) of 0.08%, there is no set limit for drugs. This makes drug DWI cases more challenging to defend, as the impairment is often determined based on the officer’s opinion rather than hard numerical evidence.

The Role of Subjective Observation Over Objective Numbers

In Drug DWI cases, the police rely heavily on their subjective observations to make a case for impairment. These observations can include your speech, balance, and other physical indicators. Since there are no objective numbers like BAC to determine impairment, your DWI defense lawyer must carefully analyze the officer's observations to identify any weaknesses in their conclusions.

The Complexity of Drug Metabolism and Toxicology

Drug metabolism and toxicology are complex areas that can significantly impact a Drug DWI case. Different drugs affect the body in varying ways, and the level of impairment may not always align with the amount of the substance in your system. At LaVine Law Firm, our experienced Houston DWI lawyers collaborate with experts who can thoroughly analyze these complex issues and effectively challenge the prosecution’s evidence.

The Drug Recognition Expert (DRE) Protocol and Its Flaws

A key tool that law enforcement uses to build a Drug DWI case is the Drug Recognition Expert (DRE) program. While it is an important part of the prosecution's strategy, the DRE evaluation is subjective and can be challenged in court. The flaws in the DRE program can provide a strong defense against a Drug DWI charge.

The 12-Step DRE Evaluation Process

The DRE protocol involves a 12-step process where a trained officer assesses your physical condition, looking for signs of drug impairment. While the evaluation may seem thorough, it is ultimately based on the officer’s interpretation of your behavior and symptoms, which can be inaccurate or flawed. This is where an experienced DWI defense lawyer can challenge the DRE’s conclusions.

Challenging the DRE's Training and Conclusions

One way to challenge a Drug DWI case is by questioning the DRE’s qualifications and the accuracy of their evaluation. DREs are trained, but their training can sometimes be insufficient, and their conclusions can be subjective. At LaVine Law Firm, we thoroughly review the DRE's findings to identify any mistakes or inconsistencies that can weaken the prosecution's case.

The Lack of Scientific Consensus on DRE Accuracy

Another issue with the DRE program is the lack of scientific consensus on its accuracy. While some studies indicate that DRE evaluations can be beneficial, others suggest that the process is not always reliable. Our Houston DWI attorneys are prepared to challenge the DRE’s evaluation process and present expert testimony to cast doubt on its validity.

Chemical Testing in Drug DWI Cases: Blood and Urine

Chemical Testing in Drug DWI Cases_ Blood and Urine

In Texas, drug DWI charges often rely on chemical testing, such as blood or urine tests, to determine if a person is impaired. While blood tests are common in DWI cases, they only show the presence of drugs in the system, not necessarily that a person was impaired at the time of driving. As experienced DWI attorneys, we know how to challenge these tests and fight for your rights in cases involving drug impairment.

Blood Tests and Forensic Toxicology

Blood tests are a common method for measuring the presence of drugs in the system. Forensic toxicologists analyze these samples to determine the concentration of specific substances. However, while these tests show the presence of drugs, they do not always prove that the drug was impairing the driver’s ability to operate a motor vehicle at the time of the Houston DWI arrest. This can be a critical point in our defense strategy.

The Critical Issue of Metabolites: Proof of Use vs. Proof of Impairment

One of the challenges in drug DWI cases is the issue of metabolites. Metabolites are substances that remain in the body after the drug has been processed. A positive blood or urine test may indicate the presence of metabolites, but this only proves use, not impairment. This is why it's important to have an experienced DWI lawyer who can challenge the evidence and argue that the drug did not affect your mental or physical faculties at the time of the offense.

Urine Tests and Their Inaccuracy for Determining Impairment

Urine tests are less accurate than blood tests for determining impairment. While they can detect the presence of drugs, they do not provide clear evidence of when the drug was consumed or how much was in the bloodstream at the time of driving. This makes urine tests less reliable in proving impairment, and we can use this weakness in your defense to fight the DWI charges.

Common Drugs Involved in Houston Drug DWI Charges

Drug DWI charges in Houston can arise from a variety of substances. These substances are often categorized into several types, including prescription medications, illegal drugs, and other controlled substances. As a Houston DWI defense attorney, we are experienced in handling cases involving these substances and know how to challenge the evidence used against you.

Marijuana (THC)

Marijuana, or THC, is a common substance involved in drug DWI charges. While marijuana is legal for medical use in some cases, it can still impair driving abilities. THC can stay in the system for a long time, and its presence in a blood test doesn’t always mean that the driver was impaired at the time of the arrest. Our team can help challenge the interpretation of THC in your case.

Prescription Medications (Benzodiazepines, Opioids, Stimulants)

Prescription medications, such as benzodiazepines, opioids, and stimulants, are frequently involved in drug DWI cases. Even if a person is taking these medications legally, they can still impair driving abilities. In some cases, a prescription drug can affect a person’s faculties enough to lead to a DWI charge. We have the expertise to challenge the use of prescription medications as evidence of impairment in your case.

Cocaine, Methamphetamine, and Other Illicit Substances

Illicit substances like cocaine and methamphetamine are often associated with drug DWI arrests. These drugs can impair mental and physical faculties to the point where driving becomes dangerous. If you’re facing charges involving these substances, it’s crucial to have an experienced criminal defense lawyer who understands the complexities of these cases and can develop a strong defense strategy.

Penalties for a Drug DWI Conviction in Texas

Penalties for a Drug DWI Conviction in Texas

A Drug DWI conviction in Texas can result in serious penalties, similar to those for alcohol-related DWI offenses. The state of Texas takes drug-impaired driving very seriously, and penalties can increase with prior convictions. It is important to understand that a first-time DWI conviction can lead to harsh consequences, while subsequent offenses result in even more severe penalties. As your experienced criminal defense attorney, we will fight to protect your future and minimize the impact of these penalties.

First-Time Offense Penalties (Jail, Fines, License Suspension)

If you're convicted of a first-time Drug DWI offense, you can face the following penalties:

  1. Jail Time: Up to 180 days in county jail.
  2. Fines: Up to $2,000 in fines.
  3. License Suspension: A suspended driver's license for up to 1 year.
    These penalties can significantly disrupt your life, and it is important to have an experienced DWI lawyer by your side to defend against these charges.

Enhanced Penalties for Second or Multiple Offenses

If you have a prior DWI conviction, the penalties for a second or subsequent offense are more severe:

  1. Increased Fines: Up to $4,000 in fines.
  2. Longer Jail Time: Up to 1 year in county jail or state prison.
  3. Longer License Suspension: 2 years or more.
    Additionally, a felony DWI conviction can result in even harsher penalties, including longer prison sentences and the potential for a permanent criminal record.

Collateral Consequences (Employment, Professional Licenses)

A drug DWI conviction can have lasting collateral consequences beyond jail time and fines. These consequences may include:

  • Employment Issues: Many employers conduct background checks, and a DWI conviction can impact your ability to find or keep a job.
  • Professional Licenses: If you hold a professional license (e.g., commercial drivers, medical professionals), a DWI conviction could result in suspension or revocation of that license.
    The impact of a drug DWI conviction can extend far beyond the criminal justice system, affecting your personal and professional life for years.

Key Defense Strategies for a Drug DWI Charge

Drug DWI cases require a proactive, science-based approach to defense. These cases are unique because impairment due to drugs is subjective and depends on various factors, such as drug metabolism. At LaVine Law Firm, we use the latest legal tactics and expert analysis to fight for your rights.

Challenging the Initial Traffic Stop and Probable Cause for Arrest

One of the first strategies in defending a Drug DWI charge is to challenge the initial traffic stop. If the police officer did not have reasonable suspicion or probable cause to pull you over, any evidence gathered afterward could be inadmissible in court. Our criminal defense team will scrutinize every aspect of the arrest to identify potential weaknesses in the prosecution's case.

Filing a Motion to Suppress Evidence from an Illegal Search

If law enforcement conducted an illegal search or seizure during your arrest, we may file a motion to suppress the evidence. This could include challenging the legality of any drug tests, blood draws, or searches of your vehicle. Protecting you from illegal searches is a crucial component of a robust defense strategy.

Attacking the DRE's Opinion and Methodology

In many Drug DWI cases, law enforcement relies on Drug Recognition Experts (DREs) to evaluate impairment. However, DRE evaluations are highly subjective and can be prone to error. Our team will work to challenge the DRE’s opinion, questioning their training, methodology, and the accuracy of their conclusions.

Hiring Independent Toxicology and Medical Experts

To strengthen your defense, we may bring in independent toxicology and medical experts. These experts can challenge the prosecution’s evidence and provide crucial testimony about how drugs affect your body and mental faculties. Their expertise can be essential in proving that you were not impaired at the time of driving.

The "Prescription Drug Defense" in DWI Cases

The _Prescription Drug Defense_ in DWI Cases

While a valid prescription medication can be part of your defense in a Drug DWI case, it is not automatically a defense if the impairment is proven. Under Texas law, a prescription drug that causes impairment can still result in a DWI conviction. However, it can be a critical factor in challenging the charges, especially if you were following a doctor’s instructions.

The Importance of a Doctor's Instructions and Dosage

If you were following your doctor's instructions regarding dosage, this can help support your defense. If you took the medication as prescribed but were still impaired, it may help explain why you were unable to drive safely. At LaVine Law Firm, we understand how to use these details to build a defense that challenges the prosecution’s case.

Lack of Warning About Driving Impairment

If your prescription medication did not include a warning about impaired driving, this can be another key factor in your defense. Many prescriptions fail to clearly state the potential risks associated with driving while taking the medication. We can use this information to argue that you were unaware of the impairment, strengthening your case.

Why You Need a Lawyer Who Specializes in Drug DWI Defense

Drug DWI cases are complex and require specific scientific and legal knowledge that general DWI lawyers may not possess. If you’ve been arrested for driving while intoxicated by drugs, you need an experienced DWI lawyer who understands the science behind drug impairment. These cases involve challenges related to pharmacology, toxicology, and evidence interpretation that can make or break your defense.

Understanding Complex Pharmacology and Toxicology

In a Drug DWI case, understanding how drugs affect the body is critical. Drugs can impair a driver’s mental or physical faculties, but the impact varies by substance. Our experienced Houston DWI defense attorneys are well-versed in the complex pharmacology and toxicology involved in these cases, allowing us to present a strong defense based on science and facts.

Experience Cross-Examining DREs and Lab Analysts

Drug DWI cases often involve testimony from Drug Recognition Experts (DREs) and lab analysts. These experts may be called upon to testify about your impairment. Our team is experienced in cross-examining DREs and lab analysts to uncover any inconsistencies or weaknesses in their findings. We work hard to ensure the evidence against you is thoroughly challenged.

Access to a Network of Scientific Expert Witnesses

In drug-related DWI cases, we can leverage a network of scientific expert witnesses who specialize in toxicology and drug impairment. These experts can testify to the inaccuracies or limitations of the prosecution’s evidence. With their help, we can build a defense that is both scientifically sound and legally robust.

The ALR Hearing Process for a Drug DWI

The ALR Hearing Process for a Drug DWI

When you are arrested for a Drug DWI in Texas, it triggers an administrative process that can lead to a suspended driver's license. Under Texas law, you have only 15 days to request an ALR (Administrative License Revocation) hearing. If you fail to act within this period, your driver’s license will be automatically suspended.

As your DWI defense lawyer, we will help you navigate the ALR hearing process and ensure that you meet all deadlines. We know the importance of this hearing, as it determines whether or not your license will be suspended, and we will work aggressively to protect your driving privileges. Don't wait to reach out—contact us today for a free consultation.

What to Expect in Court for a Drug DWI Case

The court process for a Drug DWI case can seem intimidating, especially because it involves scientific evidence and expert testimony. However, understanding the process can help reduce some of the uncertainty. As your experienced DWI lawyer, we will guide you through the legal process, making sure you understand each step along the way.

The Battle of the Experts: DRE vs. Defense Toxicologist

In Drug DWI cases, one of the key issues is the testimony of Drug Recognition Experts (DREs). These law enforcement officers are trained to identify impairment due to drugs. However, we will bring in a defense toxicologist who can challenge the DRE’s opinions and provide a second opinion that casts doubt on the prosecution’s case.

Presenting a Strong Defense to a Jury

During your court trial, presenting a strong defense to a jury is crucial. Our team is committed to ensuring that all the facts are presented clearly, and we will work hard to demonstrate reasonable doubt in your case. We will use expert testimony, challenge the validity of drug tests, and question the accuracy of field sobriety tests to fight for the best possible outcome in your case.

What to Do Immediately After a Drug DWI Arrest

What to Do Immediately After a Drug DWI Arrest

If you've been arrested for a drug DWI in Houston, it’s critical to act swiftly. The steps you take right after your arrest can have a significant impact on the outcome of your case. Here’s a checklist to guide you through this urgent time:

Do Not Answer Questions About Medication or Drug Use

After your Houston DWI arrest, do not answer any questions about the medication you've taken or drugs you've used. Under Texas law, anything you say can be used against you in court. It’s crucial to remember that you have the right to remain silent and should wait until you have legal counsel before speaking. The police may ask about your use of substances, but it’s best to avoid making statements that could harm your case.

Document Everything About the Arrest and DRE Evaluation

One of the most important things you can do after a DWI arrest is to document everything about your arrest, especially the actions of the law enforcement officers. This includes details about the Drug Recognition Expert (DRE) evaluation, field sobriety tests, and any other observations made by the police officers. This information can be crucial in challenging the validity of the arrest and the DRE’s findings. It is especially important if you have been charged with a DWI involving a child passenger, as those charges come with added penalties.

Contact LaVine Law Firm Immediately

Contact an experienced DWI lawyer as soon as possible. At LaVine Law Firm, we offer a free consultation and will begin working on your case immediately. We understand the urgency of a Houston DWI case, and we will provide an aggressive defense against any DWI penalties. Whether you face a first-time DWI offense or more serious charges, we are ready to defend your rights and protect your future.

FAQs

Can you get a DWI for prescription drugs in Texas?

Yes. If a prescription medication impairs your ability to drive safely, you can be charged with a DWI, even if you have a valid prescription.

How do police prove a drug DWI?

Police use observations, field sobriety tests, a Drug Recognition Expert (DRE) evaluation, and blood or urine tests to argue a drug impaired you.

Is a drug DWI a felony in Texas?

A first-time Drug DWI is typically a class B misdemeanor. However, it becomes a felony if it is your third DWI offense or if it involves an accident with serious injury.

Can I refuse a blood test in a drug DWI investigation?

You can refuse, but police may obtain a warrant to compel a blood test. Refusal also triggers an automatic license suspension through the Administrative License Revocation (ALR) process.

What is the best defense for a drug DWI?

The best defense includes challenging the officer's probable cause for the arrest, the DRE's subjective conclusions, and the blood or breath test’s ability to prove actual impairment at the time of driving.

How long does a drug DWI stay on your record?

A Drug DWI conviction is permanent on your criminal record in Texas. It cannot be expunged and will appear on background checks indefinitely.

Contact Our Houston Drug DWI Lawyer for a Free Case Evaluation

Contact Our Houston Drug DWI Lawyer for a Free Case Evaluation

If you've been arrested for a drug DWI, we are here to help. Drug DWI cases are complex, but with the right defense, they can be won. The science behind drug impairment is often difficult to navigate, but we specialize in these cases. We understand the intricacies of Texas DWI laws and will fight aggressively to protect your rights.

Don’t risk your future by handling this alone. Contact LaVine Law Firm now for a free, confidential consultation. We will help you navigate the legal process, defend against DWI penalties, and protect your criminal record and driver’s license. Our team has the experience necessary to handle your Houston DWI case, and our DWI lawyer is dedicated to your specific needs. Let us work with you to achieve the best possible outcome.

Brian LaVine
owner & managing attorney
About The Author
Brian, a University of Texas at Austin graduate, earned his J.D. from South Texas College of Law in December 2014, specializing in criminal law and trial advocacy.

During law school, he was a mock trial quarterfinalist and also interned at the Harris County District Attorney's Office, gaining valuable courtroom and prosecutorial insight.

With extensive experience in misdemeanor and felony cases, Brian is dedicated to providing an aggressive defense, outworking the prosecution to achieve the best possible outcome for his clients.
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