As stated by Area Investigations Manager Detective Senior Sergeant Ciaran Sloan:
Police are now treating the disappearance of 27-year-old Jessica Boyce as a homicide.
Jessica was last seen in Renwick on Tuesday 19 March, driving a red Holden Rodeo ute.
The vehicle was located at the Lake Chalice car park in the Richmond Ranges on Friday 22 March.
Police now believe that vehicle, which has been seized for forensic examination, was deliberately left in the car park in an effort to mislead the investigation.