The high court's decision was keenly awaited as a test of a legal precedent for prosecuting former Nazis which changed in 2011 with Germany's landmark conviction of former death camp guard John Demjanjuk.
Federālās tiesas lēmums Grēninga lietā arī nostiprina jauno praksi, ko radīja bijušā nāves nometnes apsarga Džona Demjaņuka notiesāšana 2011.gadā.