A DUI charge in Washington is not automatically a conviction. The right defense targets the specific weaknesses in the prosecution’s evidence, including the stop, the test, and the procedure. Here is what that looks like when the attorney defending you is certified in the same science law enforcement uses against you.
A DUI charge does not mean a DUI conviction. The state has to prove every element of its case beyond a reasonable doubt, and there are more ways to challenge that proof than most people realize.
David LaCross has spent decades defending DUI cases in Kitsap County. He is certified in field sobriety testing, crime lab processes, and blood testing procedures, which are all the same tests law enforcement uses to build the case against you.
What Is a DUI in Washington State?
Driving under the influence (DUI) is a serious offense in Washington, with penalties that can include hefty fines, license suspension, and even jail time. A DUI charge can arise from alcohol, drugs, prescription medication, or any combination that impairs your ability to drive.
The legal thresholds and full penalty ranges vary depending on your BAC, your age, and whether you hold a commercial license. What matters for your defense is not just what the charge is, but also how the evidence was gathered to support it.
An experienced attorney who understands Washington’s DUI laws, the local court systems, and the legalities of the tests that law enforcement conducts to charge you with a DUI can be your most powerful asset in this situation.
Common DUI Defense Strategies
While the best defense will depend on the unique circumstances of your case, here are several effective strategies commonly used in DUI cases:
Challenging the Traffic Stop
Law enforcement must have reasonable suspicion to pull you over. That means a specific, observable reason, such as a lane violation, a broken taillight, or erratic speed. If that threshold was not met, the stop itself may be unlawful.
When a stop is found unlawful, evidence gathered as a result, including BAC results, may be inadmissible. This is one of the first things David examines in every case.
Questioning Field Sobriety Tests
Field sobriety tests (FSTs), such as walking in a straight line or standing on one leg, are subjective and can be influenced by factors like:
- Poor lighting or uneven surfaces.
- Medical conditions.
- Nervousness or fatigue.
David is certified in standardized field sobriety tests, which is the same certification law enforcement holds. He knows exactly how these tests are supposed to be administered and what constitutes a failure in procedure. That expertise is a direct advantage in court.
Examining Breathalyzer Accuracy
Breathalyzer devices must be properly maintained and calibrated to produce reliable results. Additionally, external factors, such as certain medical conditions, diets, or even mouthwash, can impact BAC readings.
Possible defense arguments include:
- The device was improperly calibrated.
- The test was not administered correctly.
- External factors caused a false reading.
- Proving Medical or Physical Conditions
Certain medical conditions, such as acid reflux or diabetes, can affect the accuracy of both field sobriety tests and breathalyzer readings. David reviews medical history as a standard part of case preparation, not as a last resort.
Contesting Blood Test Procedures
If your blood sample was mishandled, improperly stored, or tested outside the required timeframe, this could result in inaccuracies. An attorney can challenge the integrity of the blood test results to weaken the case against you.
David has specific training in the processes crime labs use to handle and test blood samples. Chain of custody errors, improper storage, and testing outside required timeframes are all legitimate grounds for challenge, and they happen more often than the prosecution would like.
Why You Need a DUI Attorney
Most DUI attorneys know the law. Fewer understand the science behind the tests used to enforce it.
David is a member of the National College for DUI Defense. He is certified in standardized field sobriety testing and has specific training in crime lab processes and blood testing. He trained at the Trial Lawyers College, one of the most selective trial advocacy programs in the country.
That depth of knowledge means he does not just argue that the test was wrong. He can show exactly how it failed, why that failure matters, and what it means for your case. Named Best Criminal Defense Attorney in Kitsap County multiple years running. Super Lawyers 2024. WSAJ Eagle Member 2026.
If you want to understand what a defense built on that foundation looks like, read about David’s background.
Contact the Washington DUI Attorneys at LaCross Law
An arrest is not the end of the road. The right defense, built on the right expertise, can mean reduced charges, dismissed evidence, or a case that does not go the way the prosecution planned.
LaCross Law handles DUI defense cases throughout Kitsap County and across Washington State. Call 360-447-9365 or send us a message to schedule your free consultation.
Frequently Asked Questions About DUI Defense Strategies in Washington State
1. What is the most effective defense against a DUI in Washington?
There is no single best defense. It depends entirely on the facts of your case. The most effective defenses tend to challenge the evidence directly: how the stop was made, how the BAC test was conducted, and whether proper procedures were followed throughout the arrest. David LaCross reviews every layer of the prosecution’s case to find where it is weakest.
2. Can a DUI charge be dismissed in Washington State?
Yes, in some cases charges can be dismissed if the stop was unlawful, if BAC test results are unreliable, or if your constitutional rights were violated during the arrest.
3. Can a DUI be reduced to a lesser charge in Washington?
Yes, a DUI can be negotiated down to a reckless driving charge, which carries significantly lighter penalties. This is not available in every case, but it is worth exploring early.
4. What happens if I refused the breathalyzer test?
Refusing a breath or blood test in Washington triggers an automatic license suspension under the state’s implied consent law, and the refusal itself can be used as evidence against you in court. It does not prevent charges from being filed. If you refused the test, call an attorney immediately and request your DOL hearing within seven days.
5. How does David LaCross approach DUI defense differently?
David is certified in standardized field sobriety testing and has specific training in crime lab processes and blood testing, which are the same tests used to build the case against you. That technical knowledge lets him challenge evidence in ways most attorneys cannot.
6. Should I hire a DUI attorney even for a first offense?
Yes. A first offense DUI in Washington is a gross misdemeanor with mandatory minimum jail time, fines, and a license suspension. The decisions made early in the process, including whether to contest your DOL suspension, directly affect your outcome. Contact LaCross Law before you make any decisions.



