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How is blood alcohol content (BAC) determined?

When an individual is pulled over on suspicion of driving under the influence, the law enforcement officer can utilize certain tests to determine the driver’s blood alcohol content (BAC) before deciding if there are grounds for arrest. BAC testing is commonly done in one of three ways: field sobriety testing, Breathalyzer testing, and blood testing.

In most cases, a person generally must be taken into custody in order to have a blood test performed. However, field sobriety testing and Breathalyzer testing can be done on-site, which often makes them attractive options to police during a traffic stop.

For more information regarding blood alcohol content and the potential flaws of BAC testing, contact the Raleigh DWI defense attorneys at the Law Office of Jim Black at 919-600-4609.



"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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