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

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 ...

Alcohol breath tests, commonly called breathalyzers, measure blood alcohol content (BAC). The more intoxicated a person is, the higher their BAC. This test is often used by law enforcement to ...

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 ...