However, if you are sure your blood alcohol content is zero or close to it, it might be to your advantage to take such a test assuming everything goes right. Also, there is a shorter ALR license suspension for a chemical test failure, as you are implied by law to consent to chemical testing upon request by law enforcement. Additionally, Grayson and Collin County have a “no refusal” policy for driving while intoxicated, and a warrant will almost always be applied for by the officer and obtained from a judge. They will likely take you to the hospital and draw your blood with a warrant upon refusal. So, the general answer is still that one should refuse a breath or blood test upon request as far as a DWI case is concerned, but they will normally get your blood through search warrant. However, there are challenges to the search warrant that can be had if it is not proper.
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