Actions against Nazi collaborators in Czechoslovakia, real or alleged, had two significant forms, by judiciary or by mob action. Immediately after the liberation of Czechoslovakia by Soviet and American armies, in an atmosphere of chaos, wild chases began. Individual acts of revenge, mob violence, and simply criminal acts motivated by the possibility to rob or loot targets, occurred. In some places were conducted, by organised groups of self-styled partisans, violence which resembled what is today known as ethnic cleansing. In most places this stopped when the provisional Czech government and local authorities took power. Other forms included legal action, undertaken by the state administration, after the war, until the regular Czech parliament was established. President Beneš ruled by issuing , which were later ratified by parliament.