Commercial Driver DUI

COMMERCIAL DRIVER DUI

DUI While Operating a Commercial Vehicle in Phoenix and Scottsdale, AZ

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DUI When a Commercial Driver's License Is Essential for Employment

PROFESSIONAL Commercial DUI LAW FIRM SERVICES IN PHOENIX, AZ

What happens when you get arrested for DUI? And what can you do about it? Arizona drivers operating a vehicle with a commercial driver’s license (or CDL) have different standards than other drivers. This is because of the safety issues associated with operating larger vehicles such as trucks, tractor-trailers, and buses. According, the law treats Arizona DUI cases differently when the person has a CDL.

Arizona DUI laws are a lot more restrictive for people with commercial driver’s licenses (CDL). For example, most Arizona drivers will be in violation of the law if their blood alcohol concentration is .08 or greater; commercial drivers have a much tougher standard. For drivers with a CDL, the legal limit is a blood alcohol concentration of .04 or greater. More information can be found in section 28-1381(A)(4) of the Arizona Revised Statutes.

So, how do you define “impaired to the slightest degree”? Let’s find out.

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It is unlawful for a person to drive or be in actual physical control of a vehicle in this state under any of the following circumstances:


If the vehicle is a commercial motor vehicle that requires a person to obtain a commercial driver license as defined in section 28-3001; and

the person has an alcohol concentration of 0.04 or more.

"Lawrence represents very high-profile clients who greatly depend on a good outcome, and this guy will deliver. 

This is a prosecutor's worst nightmare, and it should be that way if you need an attorney."

- David E.

Real Client's Husband, Phoenix, AZ

Hiring an Experienced Commercial DUI/DWI Attorney in Phoenix, AZ

Arizona DUI law is extremely complicated and has severe consequences. DUI law is commonly referred to as a minefield. An attorney must be competent in the Arizona Rules of “Criminal” Procedure, the Arizona Rules of Evidence, the United States and Arizona Constitutions, and the Arizona Department of Motor Vehicles Rules and Regulations.


An attorney cannot do anything for you unless he or she has extensive experience in these areas.  Police officers are only human and do commit legal errors.  However, only an experienced DUI attorney will be able to find these errors and use them to help his or her client.


You should choose an experienced DUI attorney for the same reason you should choose a qualified doctor. If you break your wrist, you go to a doctor that specializes in wrist injuries. When you are charged with a DUI, you should hire a qualified DUI attorney.


An experienced Arizona DUI attorney can analyze your case for legal errors and defenses. He or she can have blood samples independently analyzed, look for suppression issues, review calibration / COBRA records of breath machines, find the right expert witnesses for your trial, and assist you with your driver’s license issues.

For more information, call our office at (602) 494-3444 or visit our contact page.
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What Real People Are Saying

That is, DUI cases actually dismissed. Verifiable not guilty verdicts. Blood alcohol evidence truly suppressed as witnessed by judges, other lawyers, and newspapers.

Real Client's Husband, Phoenix, AZ

"Lawrence represents very high-profile clients who greatly depend on a good outcome, and this guy will deliver. 

This is a prosecutors' worse nightmare, and it should be that way if you need an attorney."

 - David E.

REAL CLIENT, PHOENIX, AZ

It was miracle!... A lot of people don't really understand the benefit of having an attorney who used to be a prosecutor. They know all the little tricks and scare tactics the state has as opposed to just hiring an attorney who is a little fish in a big pond."

 - Joe C.

Contact Us Today!

For more information, call our office at (602) 494-3444 or fill out the form and we will get back to you.

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Arizona DUI Blog

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By Lawrence Koplow • 09 Sep, 2020
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By Lawrence Koplow • 05 Sep, 2020
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Measuring and Counting | Forensic Science

By Lawrence Koplow • 27 Aug, 2020
Measuring is different from counting. However, in forensic science the two are often suggested to be the same. This needs to change. MEASURING Measuring is the assignment of a number, and all the uncertainties of that of that number, to something.  The purpose of assigning a number is to give meaning to the object measured. […] The post Measuring and Counting | Forensic Science appeared first on Lawrence Koplow: Arizona DUI Attorney | Phoenix & Scottsdale.
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