45 CFR § 2554.7 - Who investigates program fraud?
The Inspector General, or his designee, is the investigating official responsible for investigating allegations that a false claim or statement has been made. In this regard, the Inspector General has authority under the Program Fraud Civil Remedies Act and the Inspector General Act of 1978 (5 U.S.C. App. 3), as amended, to issue administrative subpoenas for the production of records and documents.