On October 29, 1966, Siegfried J., who had just moved from the West to East Berlin in 1965, tried to enter into West Berlin at Bergstraße. He climbed over the cemetery wall and proceeded from there to the border wall. After triggering a signaling device which alarmed the border soldiers of his presence, he tried to escape from them by taking Bergstraße back into East Berlin. He hid on the school grounds where he was arrested by the border guards. When questioned about his move during his interrogation, he referred to the East German State Security Service.