The Polish president denied clemency on 21 February 1952 and Forster was moved from Gdańsk to Mokotów Prison in Warsaw, where he was hanged on 28 February 1952.
Polonya cumhurbaşkanı, 21 Şubat 1952'de affedilme talebini reddetti ve Forster, Gdańsk'tan Varşova'daki Mokotów Hapishanesine nakledildi ve orada 28 Şubat 1952'de asıldı.