A state forensics laboratory in a Bay Area county alerted prosecutors that urine tests conducted between 2016 and 2025 may have resulted in inaccurate alcohol readings.

A regional Minnesota crime lab has acknowledged using an expired chemical solution to test blood alcohol samples in July 2023, a slip that defense attorneys say could cast a shadow over multiple DWI ...

The field of alcohol and drug abuse testing is rapidly evolving, with new drugs continually emerging and new methods for their accurate detection and quantification continuing to be required. Dr. Olof ...

The San Mateo County Sheriff’s Office Forensic Laboratory is retesting hundreds of blood alcohol test results to determine their accuracy, according to the agency. The California Department of Public ...