My cousin was arrested for DUI in Oklahoma and the breath test result when she was arrested was different when she was tested at the police station. Does this really happen in breath testing, how can this be explained?

Carmi

Midwest City, OK

Yes, this has already happened in countless DUI cases. Any driver who is suspected to be driving under the influence could have a breath test result of 0.15% blood alcohol content (BAC) at the police station, but had a 0.07 BAC when the driver got pulled over. This is because alcohol could take an average of 50 minutes, but could take as long as three hours, to be fully absorbed into the bloodstream and create the peak blood alcohol level. This is very critical in your cousin’s DUI case in Midwest City, Oklahoma if the DUI arrest happened relatively soon after she finished drinking.

Probably, her BAC was still rising when she took the breath test which means that even if her BAC was above 0.08% when she was tested at the police station, it could be well have been below 0.08% when she was actually driving. There’s no law against having BAC that is above 0.08% at the police station; it would only be the BAC while actually driving that counts in DUI cases.