have shown questionable billing practices or signs of fraud. former drug medi-cal supervisor says she complained to the state for years about all the obvious fraud. we found billing records for people in jail, one person dead, people who said they didn't need this kind of treatment. >> uh-huh. >> reporter: clinics closed on a certain day, billing for that certain day. >> you hi. >> reporter: none of this surprises you? >> not at all. we found all of those things. >> reporter: for more than a month, cnn has been asking for an explanation from the state of california, and for more than a month, we've gotten nowhere. can i just ask you from you, why? >> that wasn't my decision. >> reporter: state health officials in one sacramento