MARION, Ill. (AP) — A southern Illinois doctor who works at a clinic where many patients try to access the state’s medical marijuana program has been subpoenaed in a state and federal investigation. State officials told the Southern Illinoisan the investigation is in response to alleged improper controlled substance prescriptions from Dr. Bodo Schneider. Schneider is the medical director clinics in Marion and Orland Park. He has said he has followed all of the state’s rules for the medical marijuana program.