yes a defense contractor as an accountant correct? Was he an IRS agent? A contractor vs government employee are two different things.
He worked as a government employee for an agency that monitors and handles military contracts. As an audit guy, he would go and ask questions of the military officials to ensure that everything in the contract was being delivered, on schedule.
I’ve worked around these folks (from both prospectives). It’s typically a pain because they are looking for tons of paperwork, and trying to find glitches in the system.