7 C.F.R. § 1951.890
When facts or circumstances indicate that criminal violations, civil fraud, misrepresentations, or regulatory violations may have been committed by an applicant or an intermediary, Rural Development will refer the case to the appropriate Regional Inspector General for Investigations, OIG, USDA, in accordance with RD Instruction 2012-B (available in any Rural Development office) for criminal investigation. Any questions as to whether a matter should be referred will be resolved through consultation with OIG and Rural Development and confirmed in writing. In order to assure protection of the financial and other interests of the Government, a duplicate of the notification will be sent to the OGC. OGC will be consulted on legal questions. After OIG has accepted any matter for investigation, Rural Development staff must coordinate with OIG in advance regarding routine servicing actions on existing loans.
7 C.F.R. §1951.890