Mirko Nunić, born in 1973, began his law enforcement career after graduating from Police High School in 1992. He initially served as a police officer and a criminal investigator at Ljubljana Vič Police Station.

In 2005, he earned his degree from the Faculty of Criminal Justice and Security and subsequently pursued postgraduate studies at the European Faculty of Law, where he obtained his degree in 2013.

In 2006, he was appointed Assistant Head at Ljubljana Moste Police Station, where he assumed responsibility for criminal investigations. Two years later, he advanced to the role of Deputy Head at Ljubljana Center Police Station. From 2010 to 2023, he served as Police Station Head, first at Vrhnika Police Station and later at Ljubljana Šiška Police Station.

In March 2023, he was appointed Assistant Director of Ljubljana Police Directorate. Alongside his regular duties, he dedicated 18 years to the Special Police Unit at Ljubljana Police Directorate, serving as a senior police officer. His distinguished service has earned him the Bronze, Silver and Gold Police Shields.

On 1 August 2024 he assumed leadership of the Uniformed Police Directorate within the General Police Directorate.