
Top Drug Offense Lawyers in Texas
Your best defense against Drug Offense Charges
Facing serious drug offense charges can be overwhelming, but the right defense team can make a critical difference. At Barbieri Law Firm, we specialize in handling high-stakes drug cases in both state and federal courts. Our attorneys provide aggressive, strategic defense, ensuring your case gets the full attention it deserves. Unlike firms with overwhelming caseloads, we limit ours to focus on personalized defense. We know how to fight and win drug cases, whether it's challenging evidence, negotiating plea deals, or going to trial. Trusted Drug Defense in North Texas Serving Collin, Denton, Dallas, Tarrant, and surrounding counties, our firm is dedicated exclusively to criminal defense. Our team includes five former prosecutors and an in-house chief investigator, offering unparalleled resources to dismantle the opposition's case.
We Defend Clients Against Drug Possession, Manufacturing, and Delivery Charges
Whatever the type of drug or alcohol charge, our team has you covered. Barbieri Law Firm's criminal defense lawyers have helped clients fight various charges, including:
- Possession of controlled substances
- Manufacturing or delivery of controlled substances
- Possession of Marijuana
- Drug Trafficking and Distribution
- Possession of Drug Paraphernalia
- Juvenile Drug Charges
- Federal Drug Charges
Whether it's negotiating a quiet dismissal or presenting fierce courtroom defense, we've done it, and won, in courtrooms all over Texas.
Strategic Defense
In Texas, defending against drug charges involves various strategic approaches, each tailored to the specifics of the case. Here are some key defense strategies:
- Challenging Evidence and Procedural Errors (Unlawful Search and Seizure, Chain of Custody issues, Improper Testing)
- Affirmative defenses (Entrapment, Duress, Necessity)
- Deferred Adjudication
- Negotiation and Plea Bargaining
- Mistake of Fact
- Intoxication Defense
- Constitutional Violations
Our lawyers guide you through every step of the criminal process, from arraignments and pretrial motions to trial strategy.
Our Process
Free Confidential Consultation
We start with a one-on-one conversation where we listen, ask key questions, and begin assessing your legal situation.
Case Review & Early Action
Our in-house investigator reviews police reports, statements, and any available evidence, eliminating the delays and added costs of outsourcing. If you’re under investigation, we may be able to intervene early.
Strategic Legal Plan
Every assault case is different. Once we understand the details, we develop a personalized legal strategy focused on dismissal, reduction, or acquittal, depending on what’s possible in your case.
Proactive Defense
We don’t wait for the DA to act. Our lawyers file motions, challenge weak evidence, and negotiate aggressively.
Courtroom Advocacy or Case Resolution
Whether through a favorable plea deal or a full trial, we fight for the best outcome possible. You’ll always know where your case stands, what’s coming next, and what your options are.
Drug Offense Lawyers: Frequently Asked Questions
Sometimes. Texas law allows warrantless car searches if police have probable cause to believe drugs are inside—like the smell of marijuana or visible contraband. But if the search was illegal or your rights were violated, your lawyer can move to suppress that evidence.
It depends on the type and amount of the drug. For many substances, anything over 1 gram can lead to a state jail felony, while larger amounts or more dangerous drugs (like cocaine or meth) can quickly escalate to second- or first-degree felonies with serious prison time.
Common defenses include illegal search and seizure, lack of knowledge or intent, mistaken identity, lab testing errors, or proving the substance wasn’t actually a controlled drug. Every case is unique—so building the right strategy starts with understanding the facts.
Yes. Even a misdemeanor drug conviction can affect your job, education, and future. A skilled lawyer may be able to get the charge reduced, dismissed, or keep it off your record entirely through diversion programs or deferred adjudication.
How Our Drug Offense Lawyers Defend You
Drug offenses in Texas are defined as the illegal possession, use, manufacture, or distribution of controlled substances, such as cocaine, meth, heroin, ecstasy, and unauthorized prescription medications. These laws classify drugs into penalty groups, and the severity of the offense depends on the type of drug, the amount involved, and the specific conduct alleged. Illegal substances include Texas takes drug crimes seriously—whether it’s a small amount of marijuana or a large-scale trafficking operation. Penalties are based on the type and quantity of the drug, with offenses grouped into penalty categories ranging from misdemeanors to first-degree felonies. Even minor possessions can carry jail time, license suspension, and a permanent criminal record. More serious charges like possession with intent to distribute or trafficking can lead to decades in prison. Convictions can carry severe penalties, including:
- Up to 2 years in jail (misdemeanor)
- Up to life in prison (felonies), along with fines
- Because of the steep consequences, building a strong defense—and doing it early—is essential. At Barbieri Law Firm, we know how to challenge search procedures, lab results, and the prosecution’s assumptions to protect your rights and your future. Our attorneys prepare aggressively from day one, with the skill required to:
- Challenge how the evidence was obtained
- File and argue Motions to reduce bond
- Negotiate for reduced charges
- Defend you in trial, if necessary
What to Expect in a Texas Criminal Defense Case
We know being accused of criminal charges can feel scary and confusing. But you don’t have to face it alone. You may be investigated long before you’re arrested. That’s where an expert criminal defense lawyer can come in to help mount a defense before the State decides to file charges. If the State files charges, a criminal case then moves through the court system in a systematic way. Here are the usual stages in a criminal case:
- Investigation – Police or others gather information
- Pre-Filing – The case might still be under review
- Case Filed – Charges are officially made
- Trial or Plea – Your case goes to court, or a deal is made
- Case Disposition – A decision is made
- Closing – Your case is wrapped up
Click the button below to download our Legal Process Roadmap resource.
If You’re Under Investigation
If your case is still under investigation, we may be able to intervene before charges are even filed.
If your case is still in the investigation stage, it’s a crucial time to have a lawyer involved. Your attorney will stay in contact with law enforcement to monitor developments and prepare you for what may come next. If charges are likely, we’ll help you make a plan—so if an arrest is coming, you can handle it calmly and with a clear strategy.
Even before you step into a courtroom, your legal team is already working. Our paralegals regularly check with the court to track whether charges have been filed or if a grand jury hearing is scheduled. We’ll keep you updated on every new development—so nothing catches you off guard.
In-House Investigator for Superior Case Management
A seasoned 36-year law enforcement veteran now leads our investigations team. She will handle everything from gathering evidence to preparing reports and providing testimony, working directly with our legal team to tailor strategies and ensure the best defense possible for our clients.
- With an in-house investigator, we eliminate the delays and added costs of outsourcing, enabling faster action and more precise case strategies that lead to better outcomes for our clients.
How Charges Are Filed in Texas
There are two ways charges typically move forward:
- By Information: Common for misdemeanors and less serious offenses. The DA files the charge directly.
- By Indictment: Used for felonies. A grand jury reviews the case and decides if there’s enough evidence to move forward.
Once charges are filed.
Once charges are filed, you become the defendant and your case is assigned a cause number and a court date.
Here’s a breakdown of key court appearances in most criminal cases:
- Arraignment or Initial Appearance: Your first court date. The judge reads the charges, and you enter a plea—guilty or not guilty. Evidence sharing begins here.
- Status Conferences / Announcement Settings: These check-in hearings track progress. Your lawyer may be negotiating with the DA or still reviewing the evidence.
- Pretrial Hearings: Your attorney may ask the judge to dismiss weak evidence or challenge how it was obtained.
Your Case, Your Decision
After building your defense, your case will reach a decision point:
- Plea Deal: The DA may offer a deal. We’ll explain the pros, the risks, and your options clearly. You stay in control—we’re here to guide, not pressure.
- Trial: If you reject the plea, we’ll prepare for trial before a judge or jury, where your case is fully argued and defended.
Disposition Stage: The Final Step
This is where the case is resolved—either by a plea agreement, a jury verdict, or a judge’s ruling after trial. It’s the most serious part of the process, and where everything we’ve done comes to a head.
Real Results: Domestic violence charges
From Investigation to Case Dismissal
When a client was facing a felony Assault Family Violence charge, attorney Carrie Thomas—a former Chief Felony Prosecutor for Collin County—used her deep knowledge of how assault cases are built and challenged the State’s assumptions early. Through strategic negotiations and a detailed review of the evidence, she convinced the prosecutor to refuse the case entirely due to insufficient proof. This is the power of having a former prosecutor on your side—someone who knows how the other side thinks, and how to shut a case down before it ever reaches a courtroom. This is why you don’t wait until charges are filed. The moment false allegations of domestic violence occur, call Barbieri Law Firm first—because our fastest wins happen when we’re brought in before the system takes its first swing.
Turning Prosecutorial Insight into Case Dismissals
When a client was facing a felony Assault Family Violence charge, attorney Carrie Thomas—a former Chief Felony Prosecutor for Collin County—used her deep knowledge of how assault cases are built and challenged the State’s assumptions early. Through strategic negotiations and a detailed review of the evidence, she convinced the prosecutor to refuse the case entirely due to insufficient proof. This is the power of having a former prosecutor on your side—someone who knows how the other side thinks, and how to shut a case down before it ever reaches a courtroom.
Did you know?
Texas Law Distinguishes Between Marijuana and THC Concentrates?
While marijuana (flower or “bud”) is typically considered a misdemeanor, the possession of a THC vape pen is a felony – regardless of how little concentration it contains.
Texas Allows Medical Marijuana Under its Compassionate Use Program
Legal possession of THC is possible for individuals with a medical marijuana prescription. Prescriptions are recorded in a registry, allowing patients to purchase low-THC cannabis products, including tinctures, lozenges, and oils.
Call Barbieri Law Firm—Because the Right Assault Lawyers Can Change Your Life.
Criminal accusations don’t just threaten your legal record—they threaten your entire life. Don’t wait. When you’re facing criminal charges in any of the counties in North, East, South, or Central Texas, you need a legal team that knows how to win and how to protect you while doing it. Ready to Fight Back? Call Barbieri Law Firm Today. Let our seasoned criminal defense lawyers show you what real defense looks like. Call us now or schedule a confidential consultation. We’re the team prosecutors warn each other about. Call 972-424-1902.
Why Barbieri Law Firm?
A Team with Prosecutorial Insight

Five of our six attorneys are former prosecutors, and we have an in-house Chief Investigator. We know how assault cases are built and how to dismantle them.
Board-Certified Criminal Defense

Our founding attorney is board-certified in criminal law, a distinction held by less than 8% of criminal defense lawyers in Texas.
Low Caseloads for High Focus

Each of our attorneys handles fewer than 50 cases at a time. Most defense lawyers juggle 200+. You get more attention, deeper strategy, and stronger outcomes.
Real Results in Difficult Cases

We’ve secured dismissals, not-guilty verdicts, and reduced charges in some of the toughest assault cases across Texas. Nearly one-third of our cases end in dismissal.
What Our Clients Are Saying
"I hired Barbieri Law Firm at an extremely dark time in my life. I was facing serious prison time & although the firm fought for me every step of the way- the courts were not coming off of the minimum prison time. At the last second, I decided to go open plea & ended up with the minimum amount of time deferred probation! Kristen Gavigan represented me & freaking rocks!! Their firm believed in me when I no longer believed in myself, fought for me when I had no fight left. They stuck it out with me for several years. It is because of them that today I am free, healthy, fulfilled, a normal functioning member of society who couldn’t be further from the person I then was on paper. I review harshly & from a place of honesty both- if you are looking to hire a shark for a firm (so to speak)- look no further. You will not regret it! They completely changed the outcome of my situation punishment wise & I firmly believe the outcome of my whole life. Thank you so much to their entire firm. <3"
Transparent pricing. Fierce representation.
When you retain Barbieri Law Firm, you’re not just paying for time—you’re investing in a strategic, courtroom-tested legal team that fights to win. We believe elite legal advocacy should come with transparency and accountability. That’s why our clients regularly receive detailed, itemized invoices that outline exactly what work was done on their case.
Our attorney billable rates align with other criminal defense attorneys in the Dallas area who bring similar prosecutorial backgrounds, courtroom strength, and decades of focused experience in sex crimes defense.
Hourly vs. Flat Fees: What’s the Difference?
Hourly Billing: A common method where an attorney charges a client based on the amount of time spent working on a case.
Flat Fees: A method where an attorney charges clients a predetermined set amount for legal services, regardless of the actual time or effort spent working on the matter.
Barbieri Law Firm operates on an hourly billing structure, ensuring that every minute spent on your defense—whether researching case law, crafting motions, or preparing for trial—is purposeful and trackable. While many other lawyers charge flat fees, we’ve seen too many clients who spend a large amount of money up front—only to have their case ignored until it’s finally resolved, often with a less-than-ideal outcome.
An added benefit of the hourly structure is the likelihood of receiving a refund at the closure of your case – at Barbieri Law Firm, all unused funds left in your reserve come back to you.