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Leonard I Frieling

Leonard I Frieling

Criminal Defense and DUI / DWI Lawyer
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Leonard I. Frieling, P.C.
Boulder, CO

About Leonard I Frieling

Attorney Biography

Lenny Frieling has been defending those facing criminal charges in Colorado since 1976. His practice has a dedicated focus on defending those charged with or under investigation for marijuana-related offenses as well as other drug violations He prioritizes giving each client personal attention and reviewing each case in detail to formulate a customized defense. Lenny is admitted to practice in Colorado state courts, the Federal and Circuit Courts in the 19th Circuit, and in the US Supreme Court.

The Colorado Criminal Defense Bar was instituted on the internet by Lenny and fellow defense attorney Philip Cherner. Lenny himself maintained the list serve for the first 6 years after the organization's establishment, as well as serving on the Board of Directors for 2 years. He is the Executive Director of Colorado NORML and has served on the Board of Directors for the Colorado Center for Modern Psychoanalytic Study, and the Colorado Municipal Judges Association. Memberships in other groups include the Victim and Law Enforcement Board, the Boulder Criminal Defense Bar. Lenny also was Chair of the Executive Council of the Criminal Law Section in the Colorado Bar Association, an extremely high honor that no one else has ever held for two consecutive terms.

As an attorney with extensive experience and a respected name in the legal community, Lenny is trusted by his clients to represent them with care and dedication. Knowledge of the law and judicial process are invaluable, and Lenny continues to devote his extensive amount of knowledge to the defense of his clients.

Practice Areas

Criminal Defense (34%)
Marijuana Defense (33%)
DUI / DWI / Drunk Driving (33%)

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Résumé - Leonard I Frieling

Bar Licenses

Colorado State Bar
Member in Good Standing


Rutgers Univ. School of Law, Newark
Juris Doctor


National College for DUI Defense
General Member
National College for DUI Defense

National Organization for the Reform of Marijuana Laws
Lifetime Member,
Legal Committee
National Organization for the Reform of Marijuana Laws

Colorado Criminal Defense Bar
Life Member
Colorado Criminal Defense Bar

Law Enforcement Against Prohibition LEAP.cc

former Exec. Dir.,
current Board Member Emeritus
Colorado NORML

Colorado Bar Association

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Awards & Recognitions

Courage Under Fire

Exemplary Service (twice chair)
Exec. Board, Crim Law Section, Colorado Bar Association

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Reviews - Leonard I Frieling

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Attorney Endorsements

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Contact Leonard I Frieling

Leonard I Frieling
Leonard I. Frieling, P.C.
1942 Broadway St #314 By appointmet only
Boulder, CO 80302
Office: 303-666-4064
Fax: 303-666-0956

Secondary Address:
102 E. Cleveland St. By Appointment Only
Lafayette, CO 80026

Online Profiles

More Information

Bar Membership Information

Colorado Supreme Court Information -

Leonard I Frieling - Attorney information with the Colorado Supreme Court - Find more information about Leonard I Frieling on the Colorado Supreme Court website, including status and disciplinary history.

Nonprofit Organizations

National Organization for the Reform of Marijuana Laws NLC -

More than 350 criminal defense attorneys belong to the NORML National Legal Committee (NLC). Members of the NORML NLC include many prominent criminal defense lawyers who are dedicated to ending prohibition of marijuana through education, legal reform and activism. Attorneys focused on other practice areas also belong to the organization.

NLC members are listed on the NORML website, are eligible for the NLC e-mail discussion group, receive the weekly email press release, and NORML News.

National College for DUI Defense, Inc. -

The NCDD is the largest non-profit, professional organization of criminal defense attorneys focused specifically on defending DUI / DWI and drunk driving related criminal charges throughout the United States and Canada.

Colorado Criminal Defense Bar -

The CCDB provides support and training to criminal defense attorneys and advocates to protect the rights of the accused.