A friend of mine wants to know what should happen in his campaign. His players acquired a 2nd ship by legal salvage and gave the last owner twice the minimum they have to for a salvage operation of the type they did, but still only 12% rather then 6%, they're having it fixed up big time and plan to return to The Imperium with it, but his roll on The Ex Owners Table he made shows that he claimed it was stolen in order to claim the insurance money and that they did it at gunpoint to get the documents. How do the players prove he's lying and not them?