This… honestly seems like a fairly straightforward case of that guy being a dick, fucking around, and then immediately finding out. I imagine the conversation went something like
official: you were improperly sent some sensitive information; you are not in any trouble due to this, but we do need it back, and we need you to sign some documents that affirm that you have not made copies or further distributed the material.
guy: I can do that… for money.
official: …solicitation of bribes from a government official is, however, a crime, so you are now under arrest.
This… honestly seems like a fairly straightforward case of that guy being a dick, fucking around, and then immediately finding out. I imagine the conversation went something like