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Add Yahoo as a preferred source to see more of our stories on Google. A view of the East Block at San Quentin. Thousands of drug tests given to California inmates gave false results last year. Prison ...

A false positive test misidentifying baking soda as a mixture of fentanyl and horse tranquilizer is what landed a Pennsylvania man in a notorious New York prison for two weeks, the state Attorney ...

Claressa Shields is determined to prevent other boxers from experiencing the hell she went through with her recent false-positive drug test ... telling TMZ Sports she's working with boxing commissions ...

Colorado has become the first state to pass a law banning an arrest based solely on a colorimetric drug test, a common tool ...

Democratic lawmakers are looking to address a controversial but commonly used drug test with an estimated false-positive rate of up to 40%. Rather than outright prohibit the tests, as other states ...

Colorado has become the first state in the nation to prohibit arrests based solely on colorimetric drug tests, also known as field drug tests. Last legislative session, lawmakers passed a bill ...

A view of the East Block at San Quentin. Thousands of drug tests given to California inmates gave false results last year. Prison advocates worry that parole decisions were tainted. (Robert Gauthier / ...