The contractor admitted that she and others conspired to steal property from the base in Kandahar in 2015, while a co-conspirator negotiated the sale of the stolen property with a third-country national middleman.
Evan Liberty is one of four former Blackwater contractors pardoned by President Donald Trump, freeing them from prison after a 2007 shooting rampage in Baghdad that killed more than a dozen Iraqi civilians.
The Department of Labor is responsible for investigating federal service contractors that underpay their employees, but not all agencies are aware of which contractors are responsible.