Throughout the Cold War, specifically between 1948 and 1951, the Czechoslovak secret police implemented Operation Border Stone, a scheme designed to entrap individuals attempting to flee the communist regime. To achieve this, they constructed counterfeit border crossings near West Germany, tricking escapees into believing they had successfully reached the West. The police then conducted sham “welcome” interviews, further reinforcing the illusion, only to guide the unsuspecting refugees into the clutches of the actual authorities.