TUCSON, Ariz. — When a driver is pulled over on suspicion of driving under the influence, they can be tested by police to find out if they broke the law. That's what Tucson police toxicology expert ...

The Colorado Department of Public Health and Environment has suspended all blood-alcohol and blood-drug testing at the state toxicology lab until further notice. The suspension comes one month after ...

A calibration error in 4,001 alcohol cases resulted in inaccurate records in some of them, drawing criticism from defense attorneys, and forcing prosecutors to take a ...