A complaint to our OIG Hotline alleged checks mailed to businesses in New York City’s financial district were never delivered and were instead negotiated by unknown third parties. Our data analytics showed the complaint wasn’t an isolated incident; in fact, there were many similar complaints for that area. Partnering with the U.S. Postal Inspection Service, FBI, and NYPD, our special agents found a suspect: a mail handler at a post office in the district.