Bruce Schnier alerts us to this amazing post -
Smell Jars of the Stasi
After the fall of the Berlin Wall, many astounding revelations came to light about the Stasi, the East German secret police. One of the more bizarre activities the Stasi was found to have engaged in was the collection of Geruchsproben — smell samples — for the benefit of the East German smell hounds. The odors, collected during interrogations using a perforated metal “smell sample chair” or by breaking into people’s homes and stealing their dirty underwear, were stored in small glass jars.