Atty. Barrett Thomas Weisz

Atty. Barrett Thomas Weisz

Barrett Thomas Weisz is a lawyer practicing criminal defense, criminal law, drugs and narcotics and 5 other areas of law. Barrett received a B.A. degree from University of California, San Diego in 1992, and has been licensed for 30 years.

Boulder Boulder 30 yrs experience 30 year
Call (720) 783-8501 Book Appointment

Profile Summary

About Barrett Thomas Weisz at a glance

Barrett Thomas Weisz is an Of Counsel based in Boulder, Colorado, practicing at Nielsen Weisz, LLC. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on dui/dwi, drug crimes, personal injury, criminal defense, and federal crimes. Admitted to practice in Colorado (1996), U.S. District Court, District of Colorado (2002), and U.S. Court of Appeals, Tenth Circuit (2005). Educated at University of Denver College of Law (J.D., 1996) and University of California, San Diego (B.A. Political, 1992). Recognitions include AV Preeminent. Active member of Colorado Criminal Defense Bar Colorado Trial Lawyers Association Boulder County Bar Association. Serands clients in Boulder, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Barrett Thomas Weisz is a lawyer practicing criminal defense, criminal law, drugs and narcotics and 5 other areas of law
  • Barrett received a B.A. degree from University of California, San Diego in 1992, and has been licensed for 30 years
  • Barrett practices at Nielsen Weisz, LLC in Boulder, CO and 1 other location

Practice Areas Explained

Barrett Thomas Weisz's Areas of Practice

Each practice area below reflects the types of cases Barrett Thomas Weisz handles, with a brief overview of what that area of law covers.

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Barrett Thomas Weisz is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Colorado →

Drug Crimes

Barrett Thomas Weisz is one of 6,966 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in Colorado →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Barrett Thomas Weisz is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Colorado →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Barrett Thomas Weisz is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Colorado →

Federal Crimes

Barrett Thomas Weisz is one of 6,773 federal crimes attorneys indexed nationally. Browse federal crimes attorneys in Colorado →

Jurisdictional Context

Why local counsel matters in Colorado

Practicing law in Colorado. Legal matters in Colorado are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Boulder are typically filed in the local municipal court or the appropriate Colorado state district court, depending on subject matter and amount in controversy. An attorney licensed in Colorado brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Colorado courts without local counsel or pro hac vice admission.

Looking for additional Colorado attorneys? Browse all attorneys in Boulder or all attorneys in Colorado.

Frequently Asked

Common questions about Barrett Thomas Weisz

Where is Barrett Thomas Weisz's law office located?
Barrett Thomas Weisz's law practice is located in Boulder, Colorado. The firm is Nielsen Weisz, LLC. You can contact the office directly through this profile page.
What practice areas does Barrett Thomas Weisz handle?
Barrett Thomas Weisz focuses on dui/dwi, drug crimes, personal injury, criminal defense, federal crimes. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has Barrett Thomas Weisz practiced law?
Barrett Thomas Weisz has 30+ years of legal experience and has been licensed since 1996.
Where did Barrett Thomas Weisz go to law school?
Barrett Thomas Weisz earned their education at (J.D., 1996); (B.A. Political, 1992).
How can I contact Barrett Thomas Weisz for a consultation?
You can contact Barrett Thomas Weisz directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Barrett Thomas Weisz received?
Barrett Thomas Weisz's notable recognition includes: AV Preeminent.

Education

J.D.
University of Denver College of Law
- 1996
B.A. Political
University of California, San Diego
- 1992

Awards

AV Preeminent

Bar Admissions

Colorado
Admitted: 1996
U.S. District Court, District of Colorado
Admitted: 2002
U.S. Court of Appeals, Tenth Circuit
Admitted: 2005

Reviews

4.4
32 Review
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