The U.S. Postal Inspection Service

Case Histories

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Postal Inspector credential badge, c.1950-1970

Postal inspectors’ investigations include some of the most infamous names in modern crime history, from Charles Ponzi to Unabomber Ted Kaczynski. With over 200 federal statutes that apply to the mail, postal employees and facilities, the U.S. Postal Inspection Service has honed an amazing variety of detective and forensic analysis skills to locate, arrest, and prosecute the perpetrators. The following cases are just a sampling of the vast array of crimes that postal inspectors investigate to keep the mail, employees, and the public safe.