'Major crime': Update provided in search for four-year-old Gus Lamont

South Australia Police Detective Superintendent Darren Fielke has revealed fresh developments in the search for four-year-old Gus Lamont, months after he vanished from a remote property in the state. "Sadly, our efforts to locate Gus have not been successful,” Mr Fielke said. “As well as that, today, I’m also declaring the disappearance of Gus Lamont to be a major crime.”