On the night of 12 March docket 4471 vanished from the system, the one for the nine tonnes that never arrived. The log says who deleted it. The trouble is that this person was not in the building.
The docket for the nine tonnes that never arrived was deleted from the system at 23:41 on the 12th. The access log says which account did it, and that account belongs to somebody who was sixty kilometres away that night. Somebody logged in as another man, and in this place the passwords are set by a written rule.
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