Sealed freight enclosure

Abstract

A method is disclosed comprising locking a freight enclosure with a lock so that freight inside the freight enclosure can be accessed only by breaking the lock or by damaging the freight enclosure. The lock typically has a serial number which can be seen by an agent receiving the lock unless the lock has been defaced. The method may include transporting the freight enclosure, and thereafter checking the lock to make sure it is not broken, the serial number to make sure it is correct, and the freight enclosure to make sure it is not damaged. An entry may be made in a log book, noting the last entity to send the freight enclosure, if these conditions are not satisfied.

Dependencies are inferred from the claim text.