Attorney Manuel J. Barba

A certified expert in DUI science, Attorney Manuel J. Barba has been practicing DUI Defense exclusively since 2004.

In 2015, Mr. Barba was awarded the ACS Forensic Lawyer-Scientist Designation, the highest form of scientific recognition available to lawyers. The Chemistry and the Law Division of the American Chemical Society grants this distinction only to lawyers who have met rigorous criteria and have demonstrated their knowledge of DUI-related science. It is a milestone and stands as a strong indication that the lawyer not only knows the law but also truly understands the science in a fundamental way.

Currently, there are only six attorneys in the state of California who hold the ACS-CHAL Forensic Lawyer-Scientist title; Mr. Barba is the only DUI defense attorney with this designation who works in the Los Angeles, Orange County, Riverside, San Bernardino, and Imperial County areas.

An authority on drug-related DUIs, Mr. Barba has the specialized knowledge necessary to evaluate arrests made by law enforcement officers for drug-related cases. He is confident in skillfully cross-examining arresting officers on issues related to drug evaluation protocols because he is trained in two programs developed by the National Highway Traffic Safety Administration (NHTSA) and the International Association of Chiefs of Police (IACP): Advanced Roadside Impaired Driving Enforcement (ARIDE) and Drug Recognition Expert (DRE).

Mr. Barba holds an array of other certifications. In addition to being an expert in the science of breath alcohol testing and analysis, he has received advanced training in forensic blood and urine analysis as it relates to testing for alcohol and drugs (including advanced courses in Gas Chromatography and Mass Spectrometry taught by Dr. Harold McNair and Dr. Lee Polite at Axion Analytical Laboratories, Inc. in Chicago).

A nationally recognized Standardized Field Sobriety Test Instructor, Mr. Barba has completed the National Highway Traffic Safety Administration (NHTSA) / International Association of Chiefs of Police (IACP) DWI Detection Standardized Field Sobriety Testing Instructor Program. He has even taught SFST courses to other lawyers throughout the United States.

Despite his extensive DUI defense education, Mr. Barba has not rested on his laurels. He is also an excellent Trial lawyer having attended the National Criminal Defense College in Macon, Georgia, as well as the Trial Lawyers College in Dubois, Wyoming.

His excellent track record has been honored with many distinctions. Mr. Barba has earned two of the highest ratings a lawyer can receive: the AV® Preeminent™ rating from Martindale-Hubbell®, as well as a “superb 10 rating” by In addition, Mr. Barba was bestowed with the "Top Lawyers" award by Palm Springs Life Magazine and Inland Empire Magazine for multiple years: 2012, 2013, 2014, 2015, and 2016.

A Specialist member of the California DUI Lawyers Association, Mr. Barba also sits on its Board of Directors. He is an active member of the National College for DUI Defense, as well as California Attorneys for Criminal Justice, the California Public Defenders Association, and the National Association of Criminal Defense Lawyers.

A member of the American Chemical Society (ACS), Mr. Barba belongs to the world's largest scientific society and one of the world's leading sources of authoritative scientific information. A nonprofit organization chartered by Congress, the ACS is at the forefront of the evolving worldwide chemical enterprise and is the premier professional home for chemists, chemical engineers, and related professions around the globe.

Based in Riverside, Mr. Barba works throughout Riverside and San Bernardino Counties, as well as in Los Angeles, Imperial, and Orange Counties.

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Please contact us if you or someone you know recently got a DUI. DUI cases are EXTREMELY time sensitive. We’ll be happy to answer your questions at no cost or obligation. Our team typically contacts you back immediately when available, if not always the same day. For immediate assistance use our contact phone numbers below.

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Our Riverside Office

3800 Orange Street, Suite 100
Riverside , CA 92501
(951) 680-9125
Toll Free
(866) 442-2722

Our Cathedral City Office

68457 E Palm Canyon, Ste 1
Cathedral City, CA 92234
(760) 770-3377
Toll Free
(866) 442-2722