U.S. Postal Inspection Service Case Management of Arrests

Our objective was to evaluate the U.S. Postal Inspection Service’s oversight of case management reporting requirements related to arrests. We also determined whether the Postal Inspection Service reports its results to National Instant Criminal Background Check System.Postal Inspection Service inspectors lead investigations involving postal crimes such as mail fraud and mail theft, execute federal search warrants, and make arrests. They also participate in investigations with other federal, state, and local law enforcement agencies that have a postal nexus, such as mailing of illegal drugs. The requirements for conducting and documenting their investigations are in the Case Management Reporting Guidelines (the Guidelines) and Case Closing Checklist. Inspectors use the Case Management System (CMS) to document investigations and arrests. In fiscal year (FY) 2020, postal inspectors reported 4,803 arrests and 3,642 convictions related to postal crimes.