Bronwyn Killmier has worked in a variety of operational management and policy areas in South Australia police, including uniform and criminal investigation at both metropolitan and rural locations within the state.  She has also worked at a management level interstate and overseas.

In 1991, she attended a one-year Fellowship program at the FBI Academy, Quantico, Virginia.  This Fellowship was in criminal investigative analysis, commonly known as offender profiling.  Bronwyn was awarded the Australian Police Medal in 1997 for her work in this area. 

Between 1998 and 2007, she held various operational and criminal investigation country and metropolitan management positions.   She also undertook reviews into intelligence led policing, the Major Crash section and Custody Management, with all recommendations implemented.  

In 2003, she undertook a three month secondment to Kent Police, United Kingdom. 

In May 2007, she was promoted to Assistant Commissioner.

In January 2013, she became Assistant Commissioner for Metropolitan Operations Service and is responsible for the six metropolitan local service areas, including the central business district, transit policing and the newly formed State Tactical Response Group.  She also has portfolio responsibility for  high risk driving, Operation Mantle (low level drug dealing), Safe Streets, taxi related crime and custody management.  Assistant Commissioner Killmier is currently studying a MSt in Applied Criminology and Police Management at Cambridge University.