technician. and she got the drugs while she was under investigation for possible drug crimes. we are looking into the story and dan explains how this happened. >>reporter: it is the scandal that rocked the san francisco police department. deb admitted to skimming cocaine from evidence she tested at the crime lab and using it herself. >> if some fell on the counter or something and was there afterwards i may have taken that. >> the attorney general office declined to prosecute her for lack of evidence. but with her work and court testimony in question, 700 current drug cases have been...