The National Anti-Corruption Commission (NACC) chief Paul Brereton has resigned, two years before his posting was due to end.Brereton was appointed as NACC's inaugural commissioner in July 2023 for a five-year term, however his tenure had been marred by scrutiny over his external work for defence.The outgoing commissioner's resignation will come into effect on July 6.READ MORE: Police, intelligence in spotlight at Bondi attack probePaul Brereton was appointed as NACC's inagural commissioner in July 2023.