A DUI jury trial in El Monte Superior Court raised questions about the reliability of BAC testing, missing evidence and investigative procedures, as the defense challenged the accuracy of the BAC ...

In Colorado, if you are pulled over for what officers say is driving under the influence, you will be asked to consent to a chemical or blood test to check your blood alcohol concentration level, also ...

Researchers analyzed data from tens of thousands of people who used low-cost mobile breathalyzers to test their blood-alcohol concentration when drinking. The analysis revealed that the repeated use ...

Add Yahoo as a preferred source to see more of our stories on Google. Blood-alcohol sample results from a crime lab that services three Minnesota counties are under criticism for potentially using an ...

Editor’s note: This story has been updated with comment from the Texas Department of Public Safety. The Bexar County District Attorney’s Office is behind a state agency’s decision to withhold ...

A San Antonio Police Department officer charged with DWI had a blood alcohol concentration nearly three times the legal limit, court records show. Officer David Grant McCall, 58, turned himself in to ...