Christian, Nisbet & Casillas

Focused. Fearless. Built for the Fight.

Christian, Nisbet & Casillas is a San Antonio criminal defense law firm representing clients across Bexar County in cases ranging from DWI and drug charges to serious felony and federal investigations.

RELENTLESS DEFENSE. PROVEN RESULTS.

We focus exclusively on criminal defense—and we prepare every case as if it’s going to trial. With decades of experience, hundreds of jury trials, and a reputation for strategic, high-stakes representation, we stand with clients when everything is on the line. From DWI to federal indictments, we deliver honest counsel, relentless defense, and direct attorney access from day one.

WHY CLIENTS CHOOSE OUR FIRM

We’re not a volume firm. We don’t hand your case to associates. We’re a trial-ready defense team trusted by professionals, public servants, and individuals facing the full weight of the system.

San Antonio criminal defense attorneys Christian Nisbet Casillas team

  • Courtroom experience that spans decades

  • Strategic defense built for serious charges

  • Discreet representation for sensitive or high-profile matters

  • You work directly with the attorney whose name is on the door

  • Respected by peers, feared by prosecutors

When you hire us, you’re not getting a process—you’re getting a defense.

Meet the Attorneys

  • David Christian

    David Christian

    A veteran trial lawyer with over 20 years of experience defending complex criminal charges—from DWI to murder. Known for his negotiation skill, courtroom presence, and commitment to clients under government scrutiny.

    Read David’s Bio →

  • Thom Nisbet

    Thom Nisbet

    A former chief felony prosecutor turned defense attorney, Thom brings unmatched insight into the prosecution’s strategy—and how to beat it. He defends clients in major criminal and federal cases across Texas.

    Read Thom’s Bio →

  • Fred Casillas

    Fred Casillas

    With over 25 years of experience, Fred advises the firm and clients in matters involving civil litigation, personal injury, and estate planning. His legacy of integrity and professionalism remains a foundation of the firm.

    Read Fred’s Bio →

  • "I decided to go with Thom and David during our initial consultation and I’m so glad I did… With Thom and David’s skillful handling of my case, we achieved a very favorable outcome… This was a life changing event for me."

    Matthew Rodriguez

  • "Their professionalism is matched only by their genuine kindness and unwavering dedication… Their ability to navigate complex legal matters with both skill and empathy made a challenging process much more manageable."

    Jackie Buckley

  • "They had information for me before I even made it back from their office… Thank you so much for helping Jesse come home!"

    Leah Christine

  • "Extremely detailed in explaining the laws… They were very straightforward, candid, and informative."

    Julie Chavez

  • If you're looking for a lawyer that's going to follow through on his word and deliver, David Christian is your man. I highly recommend him. He is experienced, knowledgeable and highly skilled at what he does.

    Lynn Mccaine

  • "Thom is a magician — he knows the legal system inside and out. Today, they got my case dismissed, proving my innocence and delivering true justice."

    Brian McSteen

  • "Exceptional Legal Counsel. You want this team on your case. They represented me and a very serious charge was 100% dismissed."

    Dylan S

  • "From the very beginning, he demonstrated exceptional professionalism, deep legal knowledge, and a genuine commitment to our case."

    Vidal Ruiz

  • "From the moment I contacted them I was greeted with kindness, honesty and never once felt judged… They broke down the legal terms and walked me through every step."

    John Regalado

  • "Very friendly and eager to help. Kept in great communication throughout process, made it very convenient for me."

    Claudia Magana

Practice Areas

  • DWI Icon

    DWI

    Comprehensive defense for first-time and repeat DWI charges, including ALR hearings and commercial license cases.

    DWI defense →

  • Drug Crimes Icon

    Drug Crimes

    Skilled representation for charges involving possession, manufacturing, trafficking, and federal drug offenses.

    Drug charges defense →

  • Assault Crimes Icon

    Assault Crimes

    Defense for a wide range of violent offenses, from misdemeanor assault to aggravated assault and manslaughter.

    Assault charges defense→

  • White Collar Crimes Icon

    White Collar Crimes

     Strategic counsel for financial and corporate crimes including embezzlement, identity theft, and wire fraud.

    White Collar crimes defense →

TRUSTED DEFENSE. WHEN IT MATTERS MOST.

If you’re facing criminal charges or under investigation, you don’t have time for uncertainty, at Christian, Nisbet & Casillas we bring clarity, strategy, and experience—right from the start.

Schedule a confidential consultation today.

Talk to an Attorney →