Hermann Giskes
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Hermann Josef Giskes was a German intelligence officer of the Abwehr, the military intelligence department of the German military forces during World War II. He is best known for being the head of the
Giskes c. 1945
Duress code
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A duress code is a covert distress signal used by an individual who is being coerced by one or more hostile persons. It is used to warn others that they are being forced to do something against their
An alarm system with a keypad; entering the duress code and pressing OFF disarms the system normally, but notifies police.