Challenging a DUI Charge Based on an Unconfirmed Drug Test
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Reviewed & verified by A. Jason Velez, Esq.*
Managing Attorney, 1LAW · Last reviewed January 30, 2026
Legal Inquiry
Consumer Legal Issue
I am being charged with DUI but based on the urine drug test it says it can’t be used for legal reason and also a confirmation test was never done.
It says the cut out is a 5,6 and next to 5 says THE DRUG SCREEN REPORT CONSISTS O F QUALITATIVE RESULTS THAT HAVE NOT BEEN CONFIRMED. THESE RESULTS SHOULD B E USED FOR MEDICAL PURPOSES ONLY. UNCONFIRMED SCREENING RESULTS MUST NOT B E USED FOR EMPLOYMENT OR LEGAL TESTING. and no test was done at the scene because I was unconscious and when I got to the hospital, I was intubated.
Attorney Answer
A urine drug screen that is expressly labeled "unconfirmed" and "for medical purposes only" is unlikely, standing alone, to be admissible to prove drug impairment — but that does not mean the DUI charge goes away. Prosecutors can still try to prove impairment through the officer's observations, the accident report, witness statements, and anything said at the scene or hospital, so this is a basis to challenge one piece of evidence, not a guaranteed dismissal.
Because you were unconscious and intubated, no field sobriety test or breath test was ever performed. That narrows the government's proof, but it also means there is no clean test to contrast against the unconfirmed urine screen. This is best raised as a suppression/admissibility argument aimed at keeping the unconfirmed result out of evidence, stated generally, rather than a claim that the whole case must be dismissed.
What you can do:
1. Request certified copies of the full toxicology report and hospital chart, not just the excerpt, so counsel can see exactly how the "unconfirmed" notation and testing limitations are documented.
2. Have counsel move to exclude the unconfirmed screen and evaluate any related implied-consent issue tied to the hospital testing.
3. Preserve the accident report and any records documenting your unconscious/intubated state.
4. Retain a local DUI defense attorney promptly to build the admissibility challenge.
⏱ Time limits apply. DC-area DUI arrests generally carry a very short administrative deadline — often just days after arrest — to request a hearing contesting any related license suspension, separate from and running alongside the criminal case. Missing it forfeits that hearing regardless of how strong the drug-test challenge is, so have a local attorney confirm the exact deadline immediately.
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Frequently Asked Questions
Can an unconfirmed urine drug screen be used as evidence in a DUI case?
Generally, a drug screen labeled as unconfirmed and for medical purposes only is unlikely to be admissible on its own to prove impairment, though that doesn't necessarily mean the whole case is dismissed.
What if no field sobriety or breath test was performed because the person was unconscious?
In many cases prosecutors can still try to prove impairment through other evidence, like officer observations, accident reports, or witness statements, even without a standard test.
Are there separate deadlines involving a DUI arrest and license suspension?
Yes, many jurisdictions impose a very short administrative deadline, sometimes just days after arrest, to request a hearing on a related license suspension, separate from the criminal case itself.
