But Götz had no regrets and went on to win the UEFA Cup in 1988 with his new West German team, Bayer Leverkusen. But life in the West did not mean he, or others, had escaped the clutches of the Stasi (indeed, he later found out that the Stasi had, within their files, photographs of his new home in West Germany). Cases of defectors drugged and smuggled back East, although rare, were not unheard of. A friend of Götz in West Germany, a fellow East German, was killed in a car accident. Götz, suspecting it was no accident, feared for his own life.
East Germany decided to upgrade the fortifications in the late 1960s to establish a "modern frontier" that would be far more difficult to cross. Barbed-wire fences were replaced with harder-to-climb expanded metal barriers; directional anti-personnel mines and anti-vehicle ditches blocked the movement of people and vehicles; tripwires and electric signals helped guards to detect escapees; all-weather patrol roads enabled rapid access to any point along the border; and wooden guard towers were replaced with prefabricated concrete towers and observation bunkers.