DUIDUI DEFENSE: CHALLENGING BREATHALYZER TEST RESULTS

May 17, 2020

We have discussed the possible unreliability of Breathalyzer test results in our blog on several occasions. These devices often function as intended and do provide reliable results. However, there are enough times when a breath test can be wrong that it is worth considering as part of a DUI defense strategy.

This time, we wanted to tell you about the many ways you and your legal counsel may challenge Breathalyzer tests in Virginia. If successful, you can avoid a DUI conviction and return to your normal way of life with a clean record.

  • The Breathalyzer police used was unreliable
  • The arresting officer was untrained in the use of the device
  • The testing device was improperly maintained and calibrated
  • The police officer used the device in a manner contrary to his or her training
  • The arresting officer lacked probable cause to test you with a Breathalyzer

The list above reflects the improper procedures used during a blood alcohol concentration (BAC) breath test. Attorneys often find success in using testing errors as part of a DUI defense. There are other things that your lawyer can use to challenge results as well.

For example, we have found that certain items you ingest may also fool a Breathalyzer or an ignition interlock device into returning a false positive. Examples include:

  • Yeasty foods like pastries and pizza
  • Topical medications for dental pain
  • Foods that contain vinegar
  • Flu and cold medications
  • Breath freshener and mouthwash

We know that it feels like your life is over after a drunk driving arrest, but accepting your fate is a mistake. Instead, take a proactive approach, and work with a skilled professional to build a sound defense. Learn more about your DUI defense options by continuing to review our website.

Chelesea L. Vaughan

Since 2013, Chelesea Vaughan has been representing clients throughout Southwest Virginia with a practice focused on contested family law, divorce, and custody matters, criminal defense, and business law. For a free consultation with Ms. Vaughan's Roanoke office, call (540) 343-9800.

Magee Goldstein Lasky & Sayers PC

114 Market St SE #210
Roanoke, VA 24011
Phone: (540) 343-9800
Fax: (540) 343-9898

The information on this website is for general information purposes only. Nothing on this site should be taken as legal advice for any individual case or situation. This information is not intended to create, and receipt or viewing does not constitute, an attorney-client relationship.

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The Roanoke attorneys of Magee Goldstein Lasky & Sayers, PC, proudly serve clients in the areas of divorce law, bankruptcy law, estate law, and criminal defense, located throughout Roanoke, Virginia, and Southwest Virginia, including in Roanoke City, Salem City, Cave Spring, Botetourt, Fincastle, Lexington, Rockbridge County, Bedford County, Smith Mountain Lake, Moneta, Rocky Mount, Boones Mill, Franklin County, Floyd County, Christiansburg, Blacksburg, Radford City, and Montgomery County.