Drug Charges Defense Lawyer San Marcos — Hays County

A drug charge in Texas can mean a Class B misdemeanor for a small amount of marijuana or a first-degree felony carrying life in prison for a large quantity of a Penalty Group 1 substance. The Fourth Amendment governs how the evidence was obtained — and if the stop or search was unconstitutional, the evidence goes with it. Trial-tested criminal defense. Former prosecutor on staff. Over 930 dismissals or rejected cases since 2021. Call 737-937-5786.

✓ 4th Amendment Evaluated on Every Case✓ Former Prosecutor on Staff✓ Hays County Courts✓ Available 24/7
Litigator of the Year 2023 — drug charges defense attorney San Marcos Hays CountyMark Hull
Expertise.com Best Criminal Defense Lawyers Hays County — drug defense TexasMark Hull*
National Trial Lawyers Top 100 — drug charges defense attorney San MarcosMark Hull — 2022
Top 40 Under 40 — Allison Tisdale former prosecutor drug charges defense Hays CountyAllison Tisdale — 2022
Lawyers of Distinction — drug defense attorney Hays County TexasMark Hull
Criminal Defense Top 10 — drug charges defense San Marcos TexasMark Hull

*Based on the quality and quantity of reviews and average minimum rating for a law firm practicing criminal defense in Austin, TX researched by expertise.com

Drug Charges in Hays County — The Charge Depends on What It Is, How Much, and How It Was Found

Texas drug charges are governed by the Texas Controlled Substances Act, codified in Health & Safety Code Chapter 481. The charge level depends on three things: the penalty group the substance falls into, the quantity alleged, and whether the charge is for simple possession or possession with intent to deliver. Marijuana operates under a separate schedule but follows the same weight-based tier structure. A small amount of marijuana is a Class B misdemeanor; a large quantity of methamphetamine or fentanyl is a first-degree felony with a minimum of five years in state prison.

Before any of that matters, I look at how the evidence was obtained. The Fourth Amendment requires law enforcement to have reasonable articulable suspicion to stop you and probable cause to search you. A traffic stop on IH-35 or Loop 82 in San Marcos that lacked legal justification, a consent search that was not truly voluntary, a vehicle search that exceeded the scope of the lawful purpose of the stop — any of these can be the basis for a suppression motion. When the court suppresses the drug evidence, the case collapses. That is not a lucky outcome; that is the Fourth Amendment doing exactly what it is designed to do.

Allison Tisdale prosecuted drug cases as a Texas state prosecutor before joining our firm. She knows how DA Kelly Higgins’s office evaluates its drug files, what it considers strong evidence versus what it knows is vulnerable to a suppression motion or chain of custody challenge. We build the defense from the moment of the stop, not from the moment of trial. Call 737-937-5786 immediately — the earlier we are involved, the more we can do.

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Texas Drug Penalty Groups — Charges & Penalties

The penalty group is the prosecution’s first allegation. The quantity determines the charge level. Both must be proven beyond a reasonable doubt — and both are challengeable.

Penalty Group 1
Cocaine • Heroin • Methamphetamine • Fentanyl • Oxycodone • Hydrocodone
<1gState Jail Felony180 days–2 yrs
1–4g3rd Degree Felony2–10 yrs
4–200g2nd Degree Felony2–20 yrs
200–400g1st Degree Felony5–99 yrs
400g+Enhanced 1st Degree10–99 yrs
Penalty Group 2
MDMA • Psilocybin • PCP • THC Concentrate • Vape Cartridges • Wax • Edibles
<1gState Jail Felony180 days–2 yrs
1–4g3rd Degree Felony2–10 yrs
4–400g2nd Degree Felony2–20 yrs
400g+1st Degree Felony5–99 yrs
⚠ THC vape cartridges & edibles are PG 2, NOT marijuana
Penalty Group 3 & 4
PG 3: Xanax • Ritalin • Valium • Anabolic Steroids
PG 4: Compound preparations containing narcotics
<28g (PG3)Class A MisdemeanorUp to 1 year
28–200g3rd Degree Felony2–10 yrs
200–400g2nd Degree Felony2–20 yrs
Marijuana (Separate Statute)
Cannabis flower only — NOT THC concentrate or edibles
≤2 ozClass B MisdemeanorUp to 180 days
2–4 ozClass A MisdemeanorUp to 1 year
4 oz–5 lbsState Jail Felony180 days–2 yrs
5–50 lbs3rd Degree Felony2–10 yrs

Drug-free zone enhancements under §481.134 apply within 1,000 feet of schools and other protected locations. These must be specifically alleged and proven — and are specifically contestable.

Drug charges defense attorney San Marcos — Fourth Amendment stop and search challenge in Hays County courts

The Fourth Amendment — Where Most Drug Cases Are Won or Lost

Nearly every drug arrest in Hays County involves a stop and a search. The Fourth Amendment requires law enforcement to justify both. Reasonable articulable suspicion must exist before the stop. Probable cause, consent, a warrant, or a recognized exception must exist before the search. When either of those requirements is not met, the evidence obtained from the stop or search is suppressible under the exclusionary rule — and without the drugs in evidence, there is no case.

I evaluate every drug arrest for Fourth Amendment violations before making any other recommendation. That means pulling the dashcam and bodycam footage, reviewing the dispatch logs, examining the officer’s training record for drug detection, and scrutinizing the written probable cause statement for factual inconsistencies. IH-35 runs directly through Hays County and generates a significant volume of drug arrests from traffic stops. Many of those stops have Fourth Amendment problems — a broken taillight that was actually intact, a lane change that fully complied with the law, a smell that was first reported after the search was already underway. We find those problems before anything else.

Allison Tisdale prosecuted drug cases before joining the defense. She knows exactly how DA Kelly Higgins’s office evaluates its drug suppression exposure — what it considers a clean stop and what it privately knows is vulnerable. That knowledge shapes every suppression argument we make.

Drug charges defense attorneys San Marcos — Mark Hull and Allison Tisdale defending drug cases in Hays County courts

How We Defend Drug Charges in Hays County

Every drug case gets the same systematic defense analysis. The order matters: Fourth Amendment first, then the charge, then the evidence.

01
Evaluate the stop and search for constitutional violations

The stop that led to the discovery of the drugs is the first thing I examine on every drug case. Was there reasonable articulable suspicion? Was the search consensual, warranted, or supported by a recognized exception? A successful suppression motion ends the drug case before trial.

02
Challenge the substance identification and testing

The prosecution must prove the substance was what the lab says it was, tested by a certified analyst using proper procedures, with an unbroken chain of custody from the arrest to the courtroom. Lab errors, contamination, analyst certification issues, and procedural failures all create grounds to challenge the identification.

03
Challenge constructive possession and knowledge

Possession requires proof that you knew the substance was there and had control over it. In vehicle stops with multiple occupants, shared residences, and cases where the drugs were found in a common area, the prosecution’s ability to connect the substance to you specifically is often its weakest point.

04
Evaluate the quantity and penalty group designation

The charge level depends on the weight and the penalty group classification. We scrutinize the lab’s weight measurement, whether adulterants were included in the weight calculation, and whether the substance actually falls in the penalty group alleged. These are facts the prosecution must prove — and facts we challenge when the evidence supports it.

05
Identify drug-free zone enhancements and challenge them

If DA Kelly Higgins’s office has alleged a drug-free zone enhancement under §481.134, we verify whether the specific location of the alleged offense actually qualifies and whether the measurement was properly conducted. Drug-free zone allegations are frequently alleged loosely and are specifically contestable.

06
Evaluate expungement on every dismissed case

A dismissed drug charge can be expunged under Texas Chapter 55. We evaluate expungement eligibility the moment any case we handle closes through dismissal and file the petition as soon as the client is eligible.

Trial-Tested Drug Defense in Hays County

Mark Hull has practiced criminal defense in Texas for over 20 years, with trial experience in Hays County, Travis County, Williamson County, and Caldwell County courts. Drug suppression hearings require the same preparation and evidentiary skill as trial.

Allison Tisdale prosecuted drug cases as a Texas state prosecutor before joining the defense. She understands how DA Kelly Higgins’s office evaluates its drug files, what it considers a clean Fourth Amendment stop, and where suppression arguments have the most traction. We carry a 5.0 rating across 363 Google reviews and have achieved Over 930 dismissals or rejected cases since 2021 across Central Texas courts, including drug charges in Hays County where the stop was successfully challenged.

Trial-Tested Criminal Defense

20+ years of Texas criminal defense experience. Hays, Travis, Williamson, and Caldwell county courts. Mark Hull.

Former State Prosecutor on Staff

Allison Tisdale prosecuted criminal cases as a Texas state prosecutor. She knows how DA Kelly Higgins’s office builds drug cases — and where they fall apart.

Tried Cases to Verdict in Hays County

When the evidence supports going to trial, we go. That changes how the prosecution values every negotiation at every prior stage.

Over 930 dismissals or rejected cases since 2021

Hays County, Travis County, Williamson County — drug charges, DWI, assault, and felonies of every level.

Over 930dismissal or rejected cases since 2021
5.0Google Rating (363 Reviews)
20+Years in Hays County Courts

Drug Charges FAQ — Hays County & San Marcos

Common questions about drug charges in Texas — answered with specific statute citations and Hays County court details.

Texas classifies controlled substances into Penalty Groups 1 through 4 under Health & Safety Code Chapter 481. Penalty Group 1 includes cocaine, methamphetamine, heroin, fentanyl, and most prescription opioids. PG2 includes MDMA/ecstasy, PCP, and THC concentrate. PG3 includes benzodiazepines (Xanax, Valium) and stimulants like Ritalin. PG4 includes compounds with limited quantities of certain controlled precursors. Marijuana operates under a separate statutory scheme. The penalty group determines the starting charge level; the weight determines the specific tier within that group.

Yes — and dismissal is more achievable on drug cases than many people expect when the Fourth Amendment analysis is done correctly. If the stop lacked reasonable suspicion or the search lacked a legal basis, the drug evidence can be suppressed, leaving the prosecution with nothing to proceed on. Chain of custody problems, lab testing errors, and constructive possession challenges also provide grounds for dismissal. We have achieved dismissals on drug cases in Hays County across the full range of charge levels, from marijuana misdemeanors through felony possession charges.

Constructive possession means the state is alleging you had control over the drugs even though they were not physically on your person. To prove constructive possession, the prosecution must show you knew the substance was present and exercised actual care, custody, control, or management over it. In cases involving vehicles with multiple occupants, shared residences, or drugs found in common areas, the prosecution’s ability to establish the connection between you specifically and the substance is often its weakest point. We challenge the constructive possession link on every case where the drugs were not found directly on the defendant.

Simple possession under Health & Safety Code §481.115 covers personal use amounts. Possession with intent to deliver under §481.112 is charged when the prosecution alleges you intended to transfer the substance to another person. Intent to deliver is not typically proven by a direct statement — it is inferred from circumstantial evidence: large quantity, individual packaging in separate baggies, a scale, a significant amount of cash, or text messages discussing sales. We challenge each item of circumstantial evidence separately, because intent to deliver is the prosecution’s inference, not a fact it can directly prove.

Health & Safety Code §481.134 enhances drug charge penalties when the offense occurs within 1,000 feet of a school, 300 feet of a school or youth center, or in certain other protected locations including playgrounds, arcades, and drug treatment facilities. The enhancement increases the minimum sentence and can elevate the charge level. Drug-free zone allegations must be specifically alleged in the charging instrument and proven by the prosecution. We verify whether the specific location of the alleged offense actually falls within the statutory distance and whether the measurement methodology was proper.

No. Marijuana remains illegal in Texas regardless of federal policy changes. Texas has not decriminalized or legalized recreational marijuana use. Possession of any amount under 2 ounces is a Class B misdemeanor; larger amounts escalate through state jail felony and into felony ranges. The one significant legal distinction in Texas is the hemp/marijuana difference — hemp is defined as cannabis with 0.3% THC or less by dry weight and is legal under Texas Agriculture Code §122.001. Standard field tests cannot distinguish hemp from marijuana, which creates a specific defense avenue on marijuana possession charges where the substance’s THC content is not confirmed by laboratory analysis.

A first-offense drug charge in Texas is treated the same as any other drug charge under the Texas Controlled Substances Act — there is no statutory “first offender” sentencing reduction. However, first-time offenders are frequently eligible for deferred adjudication probation, which allows the case to be dismissed upon successful completion of probation terms. Completion of deferred adjudication on most drug charges makes the defendant eligible for an order of non-disclosure under Government Code §411.072. We evaluate the full range of options — including outright dismissal through Fourth Amendment suppression — on every first-offense drug case before recommending deferred adjudication.

Call 737-937-5786 immediately. Do not consent to any searches and do not make any statements to law enforcement about the substance, where it came from, or how long you had it. Invoke your right to counsel clearly. The Fourth Amendment analysis depends on what was documented about the stop — that documentation needs to be preserved and scrutinized from the earliest possible stage. Evidence has retention windows. The earlier we are involved, the stronger the suppression argument we can build and the more options we have for your defense.

What Our Clients Say

5.0 stars • 363 Google reviews from clients across Hays County, Travis County, and Central Texas.

RL
Ronnicka Lopez
★★★★★
Google

“After two years, the case was dismissed and dropped. They made this whole ordeal easy, kept me in the loop, told me exactly what to expect. Mrs. Allison is such an amazing and sweet lady — the whole team. I see exactly why they received multiple awards for best law firm in the state.”

BS
Blake Shires
★★★★★
Google

“My case was dismissed. Mr. Hull was patient, attentive, and consistently communicative from start to finish. He explained every step and made sure I felt supported throughout. I highly recommend Mark Hull and The Hull Firm.”

SH
Shawn Hallman
★★★★★
Google

“These attorneys were responsive, intelligent, and relentless. I appreciated how they always had a plan and stayed one step ahead. If you’re facing criminal charges, you want them on your side.”

Drug Charge in San Marcos or Hays County? Call Us Today.

The Fourth Amendment is the most powerful defense tool in any drug case. The stop that found the drugs may not have been legal. Call 737-937-5786 — 24 hours a day, 7 days a week.

For educational purposes only. Not legal advice. Contact us for a free, confidential consultation specific to your case.

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