The Justice Department says US Investigations Services Inc. Defrauded the government by submitting more than 650,000 investigations that had not been properly completed.
A civil complaint filed yesterday says the number amounts to 40 percent of the cases the company sent the government over a four-year span through at least September 2012.
The company says that integrity and excellence are core values at USIS, which has 6,000 employees.
The government says that USIS engaged in a practice known inside the company as "dumping" or "flushing." It involves releasing uncompleted background cases to the government and representing them as complete in order to increase revenue and profit.