Following an audit, however, the state Justice Department determined only a small number of cases involved the faulty urinalysis tests and needed to be reviewed.

Faulty urine samples were linked to nine cases in Sonoma County and two in Napa County. The California Department of Justice ...

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.

The California Justice Department warns that flawed urine test kits used since 2016 may have caused false-positive DUI ...

TOPEKA, Kansas — The Kansas prison system admits it's been misusing an alcohol-detecting test that it’s relied on for years and relied on to sort out punishment for inmates it suspected were drinking.

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 ...

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 ...