The Office of Mental Health operates 25 psychiatric centers, all of which operate pharmacies to supply medications to patients. Prescription drugs are categorized as controlled (e.g., hallucinogens, which are strictly regulated by the federal government) and non-controlled (e.g., less harmful) drugs. In audit report 2007-S-111, we found that centers had sufficient controls in place to protect and account for controlled drugs, but not non-controlled drugs, which account for the majority of their drug costs. When we followed up with Office of Mental Health officials, we found that they made progress in correcting some of the problems we identified in the initial report but improvements were still needed.