Though considered to be a possible future Commissioner, in March 2016 Kaldas announced his decision to leave the Police Force and currently works for the United Nations.
At the time he was considered to be a possible future Police Commissioner, notably due to his unique background, and counter-terrorism experience.
[9] In 2017 there were serious calls by many, notably the NSW Opposition and crossbenchers, for Kaldas to be considered to replace Andrew Scipione as Commissioner despite his medical discharge the previous year.
[10] This followed wide public dissatisfaction with the most senior contender for the role, Deputy Commissioner Catherine Burn, over her decisions made during the Lindt Cafe Siege, and additionally, her involvement in the now infamous Operation Prospect, which targeted many senior police officers, including Kaldas.
[11] In 2012 a controversy developed involving Kaldas and his fellow Special Operations Police Deputy Commissioner Catherine Burn.