Skip to Content
Top
Breath & Blood Tests

Get Help from Our Proven Scottsdale DUI Defense Attorney

DUI Evidence from Breath & Blood Tests

It could happen to anyone. You go out for a few drinks with friends or to grab a beer after work with a coworker. The next thing you know, those dreaded red and blue lights are flashing in your rearview mirror. Even if you have barely had anything to drink and your BAC is below .08, you could still be arrested for drunk driving thanks to Arizona's strict DUI laws. If an officer has probable cause to believe your driving abilities are impaired due to any amount of alcohol in your system, you could be facing a DUI charge.

Law enforcement officers use multiple methods to determine a person's BAC, but the most reliable are chemical tests. There are three main tests that fall into this category: breath analysis, urine analysis, and blood analysis. Breath and blood tests are the most common for DUI cases and are frequently used by officers to secure reason to arrest and charge an individual.

Facing DUI charges due to blood or breath test results? Contact us to schedule a case evaluation with our DUI lawyer!

Understanding Breath Analysis

There is often much debate over which test is more accurate and produces the most verifiable results. Undeniably, the breath test can be affected by numerous factors, from whether or not you use mouth wash to when you last belched. While these may seem like silly issues, they can have a serious impact on the results of a breath test, pushing a person's BAC up to .08 on a reading, even though they may not actually have such a high amount of alcohol in their system.

A breath test often involves a portable breathalyzer that indirectly measures BAC by estimating the amount of alcohol on a person's breath. These machines use fuel cell science that works by technically burning the alcohol that passes through the device, generating an electric current that is considered a blood alcohol count.

However, these tests can be affected numerous issues, including:

  • Administration error
  • Incorrect calibration
  • Medical conditions
  • Body temperature
  • Smoking
  • Diet
  • Other factors

A small error could quickly spike a person's BAC, resulting in unfair and unjust charges.

How accurate are blood tests?

In comparison, blood tests are often considered much more accurate and reliable than breath tests. While some breath tests are administered at a police station, a majority are given on the side of the road where many outside factors can affect the results. However, blood tests must be taken at a hospital or police station, often making this the more accurate option.

A person's blood will be drawn and tested to determine the blood alcohol concentration in their body. People with diabetes, high blood ketones, or currently taking herbal supplements may have inaccurately higher readings, making the test results debatable in some cases. Overall though, blood tests will produce the most reliable results, so long as the sample is not contaminated.

Regardless of whether you took a breath or a blood test that produced an illegal BAC, your case is not over. All chemical tests can be challenged, so it is crucial that you call on our Scottsdale DUI lawyer at the Law Offices of Randall J. Craig to retain aggressive defense!

Our Client Success Stories

    “I can never thank him enough!!! Randall and his Staff are exceptionally caring about their clients. I felt so comfortable and right at home. They have my trust in their abilities completely!!!”
    I was charged with a DUI, Open Container, Unsafe lane change and Light on license plate out. Thanks to Randall's knowledge and expertise they were reduced to one reckless driving and a $400 fine! I can never thank him enough!!! Randall and his Staff are exceptionally caring about their clients. I felt so comfortable and right at home. They have my trust in their abilities completely!!!
    - Rose M. Ellis
    “Expertise and quick action”
    Thanks so much!! Really appreciate your valued expertise and quick action.
    - Kevin E.
    “I would highly recommend Mr. Craig, without reservation, and feel very fortunate to have had the benefit of his representation. Thank you to Mr. Craig and Staff!”
    Mr. Craig and his office staff are a team of experienced, caring, and responsive professionals. As an "out of state" client, Mr. Craig was able to obtain a very positive outcome to my case -- without my presence in court. I am truly grateful to Mr. Craig and his staff for their support. I would highly recommend Mr. Craig, without reservation, and feel very fortunate to have had the benefit of his representation. Thank you to Mr. Craig and Staff!
    - BT
    “My embarrassing charge was dismissed. He worked very hard and was always there to support me. He is a great lawyers and a great person!”
    Mr. Craig is very knowledgeable and experienced in all Criminal matters. He has helped me get through a very hard time in my life. My case was overturned and we won. My embarrassing charge was dismissed. He worked very hard and was always there to support me. He is a great lawyers and a great person!
    - Former Client
    “The absolute best attorney”
    Randall Craig is amazing!! My complex case he took on Per Diam. I trusted him the minute I met him! Such a great human being - personally and professionally!! Thank you Randall and staff so much!! Nina K
    - Nina
    “Thank you for all that you did.”

    Thank you for all that you did. Because of you, I have another opportunity at life. I will use this time to better myself….get educated, make plan, goals, ambitions. Thank you for doing an outstanding job. Nothing but love!

    - EH
    “We won and he sent me $1,500 back telling me since it only took him 3 days, the balance of the retainer was owed me. Wow. Never heard of that before! Very refreshing! We won too! I knew we would. Good guy, good lawyer.”
    I paid him $5,000 to do quick trial after firing my old lawyer. It only took him 3 days to get ready. We won and he sent me $1,500 back telling me since it only took him 3 days, the balance of the retainer was owed me. Wow. Never heard of that before! Very refreshing! We won too! I knew we would. Good guy, good lawyer.
    - Former Client
    “Randall Works Tirelessly”
    Thank you Randy for the oversight you found in our case. Your diligence, professionalism and thorough work resulted in a great outcome. We are so appreciative for the final outcome you achieved in our case.
    - J and L

Contact Law Offices of Randall J. Craig Today!

We’re Ready to Help

A member of our team will be in touch shortly to confirm your contact details or address questions you may have.

  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please make a selection.
  • Please enter a message.
  • By submitting, you agree to be contacted about your request & other information using automated technology. Message frequency varies. Msg & data rates may apply. Text STOP to cancel. Acceptable Use Policy

Why Choose Our Scottsdale Criminal Defense Lawyer?

We understand what your criminal charges mean for your future.
  • Unique Insight
    We understand how prosecutors and judges handle cases, and we use this unique insight to help construct effective defense strategies for your particular case.
  • Fierce Dedication
    Our absolute dedication and loyalty to our clients is evident during every step of the pre-trial and trial process.
  • Case Evaluations
    We offer case evaluations for individuals who have been arrested or charged with all types of misdemeanors, felonies, or federal offenses.
  • Former Prosecutor
    As a former prosecutor, Attorney Craig brings extensive experience, insightful knowledge, and impressive results to the table.