Orange County's DUI Queen
Arrested for Refusing a Blood Test? Get Board Certified in DUI Defense Attorney Virginia Landry on Your Side

DUI Breath & Blood Tests

Were you arrested for DUI after failing to complete or refusing a breath or blood test? If so, Orange County DUI Lawyer Virginia L. Landry may be able to help you. To secure a conviction for DUI (driving under the influence) in Orange County, law enforcement and the prosecuting attorney will often utilize a driver's breath or blood test results.

A breath test, blood test or sometimes a urine test may be used to determine blood alcohol concentration (BAC), the level of alcohol in your system.

If a driver is operating a vehicle while with a blood alcohol concentration of 0.08% or greater, he or she may be charged with DUI. Underage drivers may face license suspension penalties with a BAC of 0.01% or greater, and commercial drivers may face criminal charges with a BAC of .04% or greater.

Breath Test Information

A breath test is typically administered by having a driver blow into a breathalyzer device, which analyzes the sample and determines BAC. These are commonly considered less reliable than blood tests and have a number of issues that can affect results. A lawyer can bring these into question to challenge your result. For example, the machine must be calibrated every 10 days or 150 subjects, and according to state standards in order for the results to be admissible in court. If the breathalyzer device was not calibrated correctly, we may be able to use this to your advantage.

Blood Test Information

A blood test is conducted by taking a blood sample and analyzing it to determine the driver's BAC. Although more accurate than breath tests, blood tests have their faults as well and may be improperly handled, administered by an untrained professional or mishandled by error or neglect. Your attorney may be able to use this to help you avoid a conviction. Find out more about breath and blood tests and DUI by contacting our firm today.

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Reasons to Choose Us

When Your Future Is On the Line, You Need
a Qualified Attorney to Represent You.
  • Rated a "Top DUI Attorney" and Board Certified in DUI Defense

  • Achieved a Perfect 10 out of 10 Superb Rating on Avvo

  • Past President of the West Orange County Bar Association

  • Certified as a Standardized Field Sobriety Test Instructor

Client Testimonials

Read How We Have Protected Our Clients' Futures & Rights
  • “For those in need - give them a call”

    Virginia L. Landry Law Firm

  • “I'm really pleased with the outcome, especially the recent DMV decision.”


  • “She is great! I could have not picked a better attorney office to serve.”


  • “Love the team. Amazing attorney and staff.”

    Past Client

  • “I will confidently be able to say I can recommend a firm that will take care of them and it will the Law Offices of Virginia Landry!”


  • “I recommend everyone who needs an attorney to come here.”


  • “My case recieved the best possible outcome with all charges dropped.”

    Aryan Pouranpir

  • “I was finally treated fairly by the DMV because I had a competent and prepared attorney.”

    Past Client

  • “Your compassion and care is appreciated and will never be forgotten.”


  • “What can I say? Virginia and her team are the very best there is.”


  • “She treated me like I was the most important call of the day. She listened carefully and respectfully.”


  • “Everyone has been amazing and the experience has been more than a pleasant one.”

    Past Client

  • “They answered all my collect calls from jail and went above and beyond what I expected.”


  • “Choosing you and your firm as my partner to go through this ordeal was a Godsend.”


  • “I truly appreciate all the hard work and correspondence you and your staff has provided.”