A former technician accused of skimming drugs from San Francisco's crime lab has appeared in court for an unrelated drug case.
Deborah Madden pleaded not guilty Monday to a felony cocaine possession charge in San Mateo County Superior Court.
The case is due back in court May 18.
The 60-year old Madden was arrested on March 3 after authorities investigating the disappearance of drugs at the San Francisco police lab found one-tenth of a gram of cocaine and a gun at her San Mateo home.
She remains free on $10,000 bail.
Madden has not been charged in the drug lab probe.