Sacramento, California (CNN) - An investigation into a state-sponsored, taxpayer-funded rehab program in California gives an eye-opening look at fraud and abuse.
The program looks like a noble cause on paper.
Privately-run rehab clinics get Medicaid money by billing for each addict who gets counseling.
But over the past year.. An investigation by CNN and the center for investigative reporting has found a system riddled with fraud and poor oversight -- from billing for phony patients to allowing convicted felons to run rehab centers.
Because it's happening in California, its big money.
State and federal taxpayers are on the hook for tens of millions of dollars every year.
CNN investigative correspondent Drew Griffin is keeping them honest, in part one of his series.