Comment Re:Incomplete (Score 2) 338
There are actually two separate investigative agencies within the USPS. The Postal Inspection Service investigates Mail Fraud, External Crimes (done by non-employees against the USPS or Postal Employees), drugs trafficked through the mail, and employee assaults. The Postal Police are a uniformed division of the Inspection Service and perform security at postal facilities.
The USPS Office of Inspector General was formed in 1997 by the direction of Congressman Grassley. It's investigations of internal theft and financial auditing used to be done by Inspectors. But rather than having the agency head (The Chief Postal Inspector) report to the Board of Governors instead of the Postmaster General, the Congressman set up an entire new bureaucracy to support the agents who investigate internal fraud, waste and abuse.
So while it sounds wasteful to have 2 investigative agencies, it was mandated by Congress, who is happy to spend the revenues of the Postal Service.