hi there
i have had this in the past on office cleans, where items go missing and the cleaners get blamed. i always met the client and insisted that the poicve were called so to clear the matter up one way or the other. however you wouldbe amazed at the reluctace to call in the police, so i would say that either that action took place, or it was the end off the matter.
i have also had it where items went missing from an office,a nd after listening to the client the only option was the cleaner as the alarm audit proved it, i then spok to cleaner, and suggested that if by soime mistake items had been taken, dn they were returned within a certain time, no action would be taken, hey ho they returned the items, made the company i was working for at the time look like a bunch of idiots.
but stand by your staff, and your reputation, and hope it isnt proved that they were involved, delicate situation.
regards
martin