In 1984, the Stasi -- East Germany's notorious secret police -- searched the flat of an auditor to determine if he'd leaked files that put the country in a bad light to Stern, a West German magazine, published in Hamburg. They recorded the clandestine search for posterity, and used it as the basis for a training video explaining to other secret police operatives how to search a dissident's home without alerting them that they were under suspicion. (via Grugq)
