In January 2001, during his visit to New York, Kieres said that IPN had accumulated enough evidence to confirm that a group of Poles were perpetrators in the Jedwabne massacre.
2001年1月，基耶列斯（Kieres）在访问纽约时说，IPN已经积累了足够的证据证实一群波兰人是耶德瓦布内大屠杀的肇事者。