reporting found half of that money, or about $94 million has gone to clinics that have shown questionable billing practices or signs of fraud. joy jaffers former drug medical supper visor 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. >> clinics closed on a certain day, billing for that certain day. >> uh-huh. >> none of this surprises you? >> not at all. we found all of those things. >> reporter: for more than a month now, cnn has been asking for an explanation from the state of california, and for more than a month, we've gotten nowhere. >> i believe the interview was declined. >> reporter: can i ask from you why? >> that wasn't my decision.