About Jason Eric

Jason Eric Trumpler practices criminal law in Austin, Texas — He has been a member of the State Bar of Texas since 1999. His firm, The Law Offices of Jason Trumpler, focuses on various aspects of criminal law, including DUI and DWI cases, as well as domestic violence issues. Located in a vibrant part of Austin, the firm serves clients throughout the region, providing legal representation in both state and federal courts. He earned his J.D. from the University of Texas at Austin in 1999 after completing his undergraduate degree in Political Science at Whittier College in 1997. His legal career began in 1994, and he has held various positions in the field, including managing lawyer since 2006 and supervising lawyer since 2005.

His experience includes serving as a deputy district lawyer and an associate, which gave him a understanding of the complexities involved in criminal cases. Most of his practice involves defending clients against serious charges, including those related to driving under the influence and domestic violence. He has a proven track record in navigating the legal system, from initial consultations to trial preparation. Cases typically involve gathering evidence, negotiating plea deals, and representing clients in court. His background in standardized field sobriety tests also enhances his ability to challenge DUI cases effectively. Before establishing his own firm, he worked in various capacities, including a specialist role in 1994 and serving as a deputy district lawyer in the early 2000s.

This breadth of experience has allowed him to develop a comprehensive approach to criminal defense. He is experienced in the legal intricacies of both Texas and California jurisdictions, having been admitted to practice in multiple U.S. District Courts, including the Central District of California and all districts of Texas. He is an active member of several legal associations, including the Texas Criminal Defense Lawyers Association and the Austin Bar Association. His involvement in these organizations supports his staying updated on legal trends and best practices in criminal defense. He also holds memberships in national organizations focused on DUI defense and criminal law, which further enhances his professional network and resources.

In addition to his legal practice, he is dedicated to educating others about their rights and the legal process. He often participates in community outreach programs and seminars aimed at raising awareness about the implications of criminal charges. Through his work, he aims to provide clients with the best possible defense while advocating for justice in the legal system.

Education

University of Texas - Austin

J.D. (1999) | Law

Whittier College

B.A. (1997) | Political Science

Languages

English (Spoken, Written)

Experience

Managing Lawyer

Law Offices of Jason Trumpler, P.C
2006

Supervising Lawyer

The Law Offices of Myles L. Berman
2005

Deputy District Lawyer

Orange County District Lawyer s Office
2002

Associate

McNeil, Tropp & Braun
2001

Deputy District Lawyer

Ventura County District Lawyer s Office
2000

Specialist

U.S. Army Reserve
1994

Accepted Jurisdictions

Texas
U.S. District Court, central District of California
U.S. District Court, Southern, Northern, Western & Eastern Districts of Texas
California

Court Admissions

U.S. District Court for the Central District of California U.S. District Court
U.S. District Court for the Southern District of Texas U.S. District Court
U.S. District Court for the Northern District of Texas U.S. District Court
U.S. District Court for the Western District of Texas U.S. District Court
U.S. District Court for the Eastern District of Texas U.S. District Court

Types of Cases Handled

Criminal Law DUI & DWI Domestic Violence

Legal Services Scope

Initial consultations Trial preparation Negotiating plea deals

Certifications & Awards

Standardized Field Sobriety Tests

National College of DUI Defense

Professional Associations

Texas Criminal Defense Lawyers Association

has membership Current

Austin Bar Association

has membership Current

Williamson County Bar Association

has membership Current

National College for DUI Defense

has membership Current

Austin Criminal Defense Lawyers Association

has membership Current

National Association Of Criminal Defense Lawyers

has membership Current

DUI Defense Lawyers Association

has membership Current

Texas Bar College

has membership Current

Texas Criminal Defense Lawyers Association

has membership Current

Wake County Bar Association

has membership Current

American Bar Association

has membership Current

Burlington County Bar Association

has membership Current

Office Locations

Main Office

 505 W 12th St Suite 200 S Austin TX 78701

Office 2

 1000 Heritage Center Circle Round Rock TX 78664

Videos

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Dual HGN
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Dual HGN
Example of the HGN test performed on someone with a 0.00% blood alcohol concentration.
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Example of the HGN test performed on someone with a 0.00% blood alcohol concentration.
HGN test with 0.107 Blood Alcohol Concentration
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HGN test with 0.107 Blood Alcohol Concentration
HGN Test with a Blood Alcohol Concentration of 0.117%
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HGN Test with a Blood Alcohol Concentration of 0.117%