Professor Robert Weisberg talks to KCBS radio about the controversy surrounding San Francisco toxicologist Ann Marie Gordan, who has been accused of making "ethical compromises" in her previous job in Washington state:

Stanford Law Prof. Robert Weisberg on the controversy surrounding the legitimacy of toxicologist Ann Marie Gordon's work and DUI test results.

The Washington state court labeled that toxicologist in a report that occurred after perpetrator a fraud when she ran the state's toxicology lab. For more we're joined live on the KCBS News Line by Robert Weisberg is a Stanford Law professor and director of the school's Criminal Justice Center. Professor Weisberg, thank you for your time this morning.