Ašner was born in
Daruvar, in the
Kingdom of Croatia-Slavonia, which was then part of the
Austro-Hungarian Empire. After the establishment of the
Independent State of Croatia in 1941, he became chief of police in
Požega. After the collapse of the Independent State of Croatia Ašner retreated towards
Austria, where he took a new name, Georg Aschner. In 1961, Ašner became the president of the newly established
Klagenfurt branch of the
Croatian Peasant Party (HSS), and organised commemorations for the
Bleiburg repatriations in the name of the HSS. In 1992, after Croatia declared itself independent, Ašner returned to Croatia, living in Požega until 2004 when Alen Budaj, a historian and associate of the Israeli Simon Wiesenthal Centre located him there. That same year, the director of the centre,
Efraim Zuroff, brought the documents on Ašner to the Croatian Prosecutor's Office. Ašner fled to Austria. In 2005, the Republic of Croatia accused him of crimes against civilians and asked for his extradition from Austria. In 2008, Austria refused because Ašner suffered from severe
dementia and unfit to stand trial. ==Efforts to prosecute==