1070. Investigative Jurisdiction for Extortion Cases
The Postal Service investigates the depositing for mail, or causing to be so delivered, of any threat to injure the reputation of any person or to accuse any person of a crime. Investigative jurisdiction for the balance of the statutes is vested in the Federal Bureau of Investigation (FBI). Certain extortion incidents may be investigated as incidents of domestic terrorism.
[cited in USAM 9-60.300]