Gus is believed to have wandered from the property, which is about 40km south of Yunta, about 5pm last Saturday.

An extensive search has been ongoing after his family were unable to find him and has grown more desperate each day.

Police returned to the family’s property to investigate what is now the presumed death of the four-year-old boy.

Officer spent more than two hours speaking with family and taking photos around the property.

Police said all the evidence so far suggests the boy’s disappearance is not suspicious.

A friend of the family spoke out against what she described as “hurtful conspiracy theories” about what had happened to the four-year-old.

“Stop with the conspiracy theories,” family friend Fleur Tiver said.

“This child has not been taken. In theory there’s a public road, but in reality there’s six gates on that road out to the highway.”

The team of officers appeared to re-trace and record Gus’s last known movements at the property last night.

The information will form part of their ongoing investigation.

Locals in the region have been left saddened and baffled by the disappearance.

“It’s hard to believe how he could just disappear, in a short circumference of their farmyard, house, station,” local Braithe Selleck said.

“A little boy, four years old, is not I wouldn’t have thought, just got too far away.”

Before it was ended, the search for Gus spanned seven days and an area of almost 500 square kilometres, involving aircraft and teams on the ground.

Each day at least 50 people were involved, but they found nothing apart from a footprint.

Everyone’s thoughts now with the parents, and family, suffering a terrible loss.

“Even the whole community, you know, it’s a very close knit community,” Selleck said.