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Blood Sample Errors

Prior to a traffic stop, law enforcement officers may become suspicious that the driver is under the influence of drugs or alcohol. If this is the case, they may ask that the driver submit to a variety of tests in order to determine whether he or she is intoxicated. One method that is increasingly prominent is the drawing of a blood sample to identify the exact blood alcohol content of the driver. Although this is considered to be the most reliable form of testing, errors made during the sampling process may compromise the accuracy of the test.

If you or someone you love has been charged with driving while intoxicated, the Raleigh DWI defense attorneys at the Law Office of Jim Black may be able to help. Contact us today at 919-600-4609 to discuss your case with a knowledgeable and experienced lawyer.

Types of Errors

From the initial blood draw to the interpretation of the test results, there are many individual steps and an error during any of these can produce misleading or outright wrong results. Some of the most common blood sample errors include:

  • Failure to obtain the blood sample correctly or obtainment by an unlicensed individual
  • Failure to preserve the sample in a way that protects the integrity of the test
  • Testing performed in an unsterilized environment
  • Lengthy delays before testing resulting in fermented blood samples
  • Switching one blood sample for another
  • Contaminating the sample by the introduction of other substances

Law enforcement officers may fail to acknowledge the possibility that this test is completed incorrectly, and might choose to proceed with unreliable results. It is important to understand your rights as an accused individual and be prepared to fight against this sort of improper practice.

Contact Us

To avoid a DWI conviction on the basis of incorrect blood test results, it is recommended that you speak with a skilled and experienced attorney immediately. The Raleigh DWI attorneys at the Law Office of Jim Black have years of experience fighting for the rights of individuals accused of driving while intoxicated. Contact our offices today at 919-600-4609 to speak to a member of our qualified legal team.


"Jim, I just wanted to thank you again for everything you did for me. I am very happy about the outcome and would recommend you to anyone and everyone who has a DUI case. Two things that stuck out the most is your patience and honesty, you wanted the best for me and that was obvious."

The Law Office of Jim Black

5 West Hargett Street #310
Raleigh, NC 27601

Phone: (919) 600-4609
Fax: (919) 834-4891


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