Paul Brereton’s appearance before a Senate inquiry illustrated why public confidence in the national anti-corruption agency is in the toilet – and what now needs to be done Get our breaking news email , free app or daily news podcast Things were off to a bad start even before Paul Brereton sat down at the witness table. A judge of the NSW court of appeal, a war crimes investigator and the inaugural boss of the National Anti-Corruption Commission (Nacc), Brereton is usually the one requiring witnesses to answer questions. But on Tuesday night, he was forced to front up to budget estimates hearings for the first and only time as the boss of the Nacc.