Nick Kaldas was born in Egypt in 1958 and moved with his family to Australia in 1969. He served in the NSW Police for 35 years, the last ten as the Deputy Commissioner. His career was mainly in major and organised crime investigations and counter terrorism. As head of the Homicide Squad, he led the investigation into the murder of John Newman MP and oversaw many other investigations, including the murders committed by Sef Gonzales. Nick also held a number of significant international roles, including Deputy Chief Police Adviser with the Coalition Forces in Iraq in 2004, overseeing the rebuilding of the Iraqi police and security forces; Chief of investigations in the UN Special Tribunal for Lebanon in 2009-10, investigating the assassination of former prime minister Rafic Hariri and a number of other assassinations; and Chief of Investigations of the UN/OPCW investigation into the use of chemical weapons in 2016. He recently served as Chair and Commissioner for the Royal Commission into Defence and Veteran Suicide.