Quick answer: Effectively yes. While most Texas counties run no-refusal programs on holidays and select weekends, Williamson County has operated a standing no-refusal policy for years — refuse the breath test on any night and officers will seek a blood warrant. Refusal there does not keep evidence out of the case; it changes which kind of evidence the case contains.
Here is how it works in practice: you decline the breath test, the officer drafts a warrant affidavit, an on-call judge reviews it — often electronically within the hour — and a blood draw follows at a hospital or approved facility. The state ends up with a BAC number either way; refusal simply adds a warrant and a draw to the paper trail, and a license suspension consequence under the ALR rules.
The defense implications are specific. Blood cases live or die on the warrant affidavit’s accuracy, the qualification of the person drawing blood, the chain of custody, and the lab’s analytical work. Every added step is an added requirement the state must satisfy — and in a county that runs this process at volume, shortcuts happen. We pull every document and check.
Related questions
Should I refuse the breath test in Williamson County?
Understand the trade: refusal triggers a longer ALR suspension (180 days versus 90 for a failed test) and in this county almost always produces a blood warrant anyway. There is no universally right answer — but assume refusal means blood, not no evidence.
Can a blood warrant be challenged?
Yes. The affidavit must establish probable cause with accurate, specific facts. Boilerplate language, factual errors, or an unqualified blood draw can support suppression — it is one of the first things we examine in every Williamson County blood case.
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General legal information for Texas, not legal advice about your specific case. Last reviewed July 2026.
