Police desperately searching for Cleo Smith have returned to the campsite the little girl went missing from to gather more evidence as the AFP joins the hunt.
Officers involved in search efforts will refocus their attention to the campsite after fears were raised the four-year-old girl had been abducted and taken elsewhere.
It's understood police from Taskforce Rodia took ash samples from several burnt-out campfires near shacks along the beachfront.
Detective Superintendent Rod Wilde arrived at the Blowholes Campsite near Carnarvon on Wednesday night to join almost 100 officers on the ground.
The Australian Federal Police will also join the suspected abduction case to boost search efforts with advanced technology, intelligence and forensics abilities.
Police desperately searching for Cleo Smith (pictured) have returned to the campsite the little girl went missing from to gather more evidence as the AFP joins the hunt
It's understood police from Taskforce Rodia took ash samples from several burnt-out campfires near shacks along the beachfront
Home Affairs Minister Karen Andrews confirmed the AFP's involvement in the hunt for little Cleo in Parliament on Wednesday.
'Australians can be certain that we will continue to equip our law enforcement and intelligence agencies with the tools and the resources that they need to combat this very serious crime - and especially crimes against children,' Ms Andrews said.
Her comments come as bounty hunters and private investigators have swarmed to the Gascoyne town to offer their services.
Civilian investigators have been sending locals messages over social media with one man chartering a helicopter to search an area hundreds of kilometres from the town, the West Australian reports.
However when approached by the publication, the man denied he was a bounty hunter and was instead surveying for 'oil' and 'gas' deposits.
Police scoured Cleo's family home for the third time on Wednesday as part of 'routine practices' to eliminate all possibilities.
Police scoured Cleo's family home for the third time on Wednesday as part of 'routine practices' to eliminate all possibilities (pictured, the family)
Little Cleo Smith and her step father Jake Gliddon, who has 'raised her as his own' are pictured together
The heartbroken step father of Cleo Smith (pictured in a green singlet and sunglasses) has returned to the family's home for the first time since his little girl vanished from Blowholes campsite in Western Australia 11 days ago
Forensics officers and detectives had spent most of Tuesday searching the home and left with two bags of evidence, although their contents remain unclear.
Acting WA Police Commissioner Col Blanch said the search of the family home was 'standard practice' and did not indicate they were suspects in Cleo's disappearance.
'The parents have been nothing but helpful. We've worked very closely with them, they've let us into their home, they've let us into their cars, their phones, everything,' Mr Blanch told 6PR.
'That is a normal part of an investigation and we must follow it thoroughly.
'Our job is to eliminate everyone that was at that campsite, and that is a systematic and thorough approach in doing so in any investigation. And that really is the focus of the investigation at the moment.'
Officers are also looking into CCTV of a car that was seen driving down a highway near the Blowholes campsite in the time window Cleo disappeared in.
The footage was taken from a home on the North West Coastal Highway, which reportedly shows a sedan travelling down the road at about 3am.
