Gus went missing on 27 September from Oak Park Station, where South Australia police have begun a two-day search for evidence

South Australian police have arrested a 75-year-old on unrelated firearm offences as they launch a new search for evidence during the investigation into missing four-year-old Gus Lamont.

Gus, short for “August”, went missing on 27 September 2025 from his family’s remote sheep station, sparking one of the biggest and most intense searches in South Australia’s history.

A Deeper Look

Police said on Monday they had arrested a 75-year-old from Grampus and charged them with firearm offences. The charges are as a result of a previous search at Oak Park Station, Gus’s home, but are not related to Gus’s disappearance or a previous incident at the property involving media, police said.

The Daily Mail reported in October that one of Gus’s grandmothers waved a gun while one of their reporters was there. Police reportedly said the reporter was on private property without permission, and that the gun was to dispatch a snake.

The person has been bailed to appear at the Peterborough magistrates court in May.

Earlier in the day, police said they had returned to Oak Park Station to continue searching for evidence after identifying a suspect in his disappearance. The search was expected to continue on Tuesday.

Gus has been missing since September. He had been playing outside at 5pm but, when his grandmother went to call him inside half an hour later, he was gone, police were told.

Based on information from people living with Gus at Oak Park Station, SA police initially believed he had wandered off.

Drones, divers, dogs and teams of volunteers, police, emergency services and defence force personnel searched the 60,000-hectare property, which is about 300km inland from Adelaide, and beyond.

Implications and Outlook

The long-term effects of these developments are yet to be fully understood, but stakeholders are watching closely. The situation remains fluid, with potential for significant impact on the sector and the wider community.