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Last Modified on Jul 24, 2026
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If you are arrested for driving under the influence in Hawaii, one of the most critical pieces of evidence in your case may be the results of a breath or blood test. Prosecutors often rely heavily on chemical test results to prove that a driver was impaired. Understanding the Hawaii DUI breath and blood test defense is critical for your case, as it may allow the accusations against you to be challenged or even overcome.
Understanding the Use of Chemical Testing in DUI Cases
Intoxication is not always observable from a person’s behavior, including their performance behind the wheel. Because of this, Hawaii law enforcement officers rely on blood and breath tests to determine whether a person exceeds the state’s legally allowable blood alcohol limit.
Hawaii DUI laws, such as Hawaii Revised Statutes 291E-61, can also play a role in your DUI case. However, not every arrest automatically equates to a guilty conviction. This is because not every blood or breath test is completely accurate. Mistakes can be made, and the chance of such an error can impact your case outcome – especially when you hire a DUI lawyer.
Rights and Responses When a Chemical Test Is Introduced
When you drive on Hawaii roads, it is implied that you consent to breath or blood tests if you are suspected of impairment. Refusal can result in immediate administrative penalties, including potential license suspension.
However, you do have a right to request a lawyer if you are arrested. Though you may have to provide basic information to the officer about your identity, you can request to speak to a DUI attorney instead of speaking further about your situation to law enforcement.
A qualified legal professional can explore several defense strategies, including:
- Analyzing whether improper collection procedures were used
- Checking whether samples were contaminated or tampered with
- Investigating if laboratory issues or storage violations occurred
- Questioning whether the traffic stop was reasonable or justified
- Searching the entire process for constitutional rights violations
Hawaii saw nearly 850 DUI arrests in 2025, down slightly from nearly 900 the year before. While the state can be very aggressive in its prosecution of DUI cases, both for road safety and to dissuade future instances, not every arrest is legitimate.
If you find yourself in this situation, don’t panic. Rather than accepting that you will be found guilty, contact skilled legal representation to find out whether the testing process used to accuse you could actually be a factor in getting your case dismissed.
Hire a DUI Lawyer Today
When you are facing a DUI charge, it can be extremely frustrating. Add in the circumstance of a chemical test rendering a result you believe is faulty, and the situation can leave you feeling overwhelmed. However, as bad as you may feel, you are not alone.
The Law Office of R. Patrick McPherson has been serving the fine people of Hawaii in DUI cases for two decades. Our team knows how to cross-examine evidence against you, including chemical test results, to pursue a better verdict on your behalf.
We can bring the same level of scrutiny to the prosecution that they bring to you in these cases. Contact our office today for a free consultation, and let us work to help you move past this matter.
