[Moriarty]

Do any of the belongings have any sort of tracking ability? A smartphone perhaps? Anything of that sort? Even if its not currently on but has the ability to be tracked you could set up a watch for it for when it is inevitably turned on (if the trailer is eventually broken into and the belongings attempted to be sold) With modern technology this is certainly becoming a feature... although I think most of them require prior setup to being stolen. Perhaps ask anyone on the team if their phone was stolen whether they had any such app on their phone?