Gus Lamont disappearance is declared a major crime

South Australia Police have declared the disappearance of four‑year‑old Gus Lamont a major crime and outlined three lines of inquiry; a police press conference was scheduled for 1pm local time.

South Australia Police have declared the disappearance of four-year-old Gus Lamont a major crime and said new lines of inquiry are being pursued. Gus was last seen at his grandparents' homestead at Oak Park Station on September 27 while in the care of his grandmother. Police told reporters Task Force Horizon has explored several investigation options. A press conference was scheduled for 1pm local time where officers provided further detail. What officials say: - Police are pursuing three investigation options: that Gus walked off and became lost; that he was abducted; or that someone known to him was involved in his disappearance. - Detective Superintendent Darren Fielke announced the case has been declared a major crime and is being handled by the state's Major Crime division. - Gus was last seen at about 5pm on September 27 at the Oak Park Station homestead and the family reported him missing to police later that day. Summary: Declaring the case a major crime broadens the investigative resources and places the matter with Task Force Horizon. Police have outlined three main theories and said they would provide further information at the scheduled press conference.