Barrett Thomas Weisz, Criminal Defense Attorney in Boulder, Colorado
Over 30 years of legal practice · focused on Criminal Defense, Drug Crimes, and DUI/DWI · 4.4/5 rating from 32 verified client reviews
Of CounselatNielsen Weisz, LLC
Boulder, CO
Practicing criminal defense in Boulder since 1996.
- 30+
- Years practicing
- 4.4 ★
- 32 client reviews
- 3
- Bar admissions
Are you Barrett Thomas Weisz?
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Quick answer
Barrett Thomas Weisz is an of counsel based in Boulder, CO. The practice focuses on Criminal Defense, Drug Crimes, and DUI/DWI. Barrett has over 30 years of legal experience. Currently practicing at Nielsen Weisz, LLC. Rated 4.4 out of 5 from 32 client reviews.
- Based in
- Boulder, CO
- Experience
- over 30 years
- Known for
- Criminal Defense · Drug Crimes · DUI/DWI
- Handles Criminal Defense, Drug Crimes, and DUI/DWI matters from Boulder, CO.
- Over 30 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Barrett Thomas Weisz: Barrett Thomas Weisz is an of counsel based in Boulder, CO. The practice focuses on Criminal Defense, Drug Crimes, and DUI/DWI. Barrett has over 30 years of legal experience. Currently practicing at Nielsen Weisz, LLC. Rated 4.4 out of 5 from 32 client reviews.
Areas of practice
Legal matters Barrett takes on
Barrett concentrates on criminal defense, drug crimes, dui/dwi, federal crimes, and personal injury. Each area below outlines the kind of case Barrett handles, typical outcomes to expect, and how the intake process starts.
Criminal Defense
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Drug Crimes
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DUI/DWI
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Federal Crimes
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Personal Injury
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Sex Crimes
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White Collar
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Criminal Defense cases in Boulder, Colorado
Barrett takes criminal defense matters in Boulder, Colorado. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Barrett agrees to represent you.
Drug Crimes cases in Boulder, Colorado
Barrett takes drug crimes matters in Boulder, Colorado. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Barrett agrees to represent you.
DUI/DWI cases in Boulder, Colorado
Barrett takes dui/dwi matters in Boulder, Colorado. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Barrett agrees to represent you.
Federal Crimes cases in Boulder, Colorado
Barrett takes federal crimes matters in Boulder, Colorado. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Barrett agrees to represent you.
Personal Injury cases in Boulder, Colorado
Barrett takes personal injury matters in Boulder, Colorado. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Barrett agrees to represent you.
Biography
Meet Barrett Thomas Weisz — criminal defense lawyer in Boulder
Barrett Thomas Weisz is an of counsel based in Boulder, CO. The practice focuses on Criminal Defense, Drug Crimes, and DUI/DWI. Barrett has over 30 years of legal experience. Currently practicing at Nielsen Weisz, LLC. Rated 4.4 out of 5 from 32 client reviews.
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.
How Barrett handles criminal defense matters
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.
The kind of cases Barrett takes
Barrett reviews new inquiries case-by-case for criminal defense, drug crimes, and dui/dwi matters in Boulder and the surrounding Colorado area.
Credentials
Education, bar admissions, and languages
University of Denver College of Law
J.D. · 1996
University of California, San Diego
B.A. Political · 1992
Jurisdictions
Barrett's state bar admissions
U.S. Court of Appeal
2005 · ACTIVE
U.S. District Court,
2002 · ACTIVE
Colorado
1996 · ACTIVE
Barrett studied at J.D. in University of Denver College of Law and B.A. Political in University of California, San Diego.
Law school and academic background
Barrett completed J.D. in University of Denver College of Law and B.A. Political in University of California, San Diego. Formal legal training is one signal of substantive knowledge — the day-to-day practice Barrett runs in Colorado is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Barrett has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Barrett's professional memberships and bar associations
Colorado Criminal Defense Bar Colorado Trial Lawyers Association Boulder County Bar Association
membership
Locations
Barrett Thomas Weisz's office in Boulder
Barrett's primary office is at 900 Arapahoe Ave., Boulder, CO, 80302. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Barrett Thomas Weisz — 4.4/5 rating from 32 verified client reviews
Every review below is from a verified client of Barrett. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing criminal defense attorneys in Boulder.
4.4
32 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Barrett Thomas Weisz claims this profile.
Read all reviewsHiring guide
How to hire Barrett Thomas Weisz — what to expect in your first consultation
Working with a new criminal defense attorney should feel structured. Here's how the first two conversations with Barrett usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Barrett charges for the initial consult. That fee is credited toward representation if you retain Barrett's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Barrett will tell you what matters and what doesn't.
Questions to ask a criminal defense attorney in Boulder, Colorado
A short list to run through before you commit: How many criminal defense matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Barrett
Barrett discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in criminal defense practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every criminal defense matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Barrett confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Barrett's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many criminal defense practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Barrett Thomas Weisz
How much does it cost to hire Barrett for a criminal defense case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Barrett walks through the likely range during the consult so there are no surprises.
Does Barrett offer a free consultation?
Barrett charges for the initial consult; that fee is credited toward representation if you retain Barrett's office. Some criminal defense attorneys offer free consults — check Barrett's current terms during booking.
How long do criminal defense cases in Colorado typically take?
Simple criminal defense matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Barrett gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Barrett take my case if I'm outside Boulder?
Barrett is licensed in Colorado. Matters governed by Colorado law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Barrett will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Barrett?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Barrett will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Barrett accepting new criminal defense clients right now?
Barrett's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Criminal Defense attorneys serving Boulder, Denver and Colorado Springs in Colorado
Barrett handles criminal defense matters throughout Colorado. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.
More counsel
Other top-rated criminal defense attorneys in Colorado
If Barrett's intake is full or the fit isn't right, these criminal defense attorneys in Boulder handle similar matters. Every profile below is verified and open to consultations.





