“For the sake of the family, it’s important to try and get them some answers and try to find her.”
He said Wallace’s partner is not a suspect and is providing information to police.
“I would caution the community about speculating on what they think might have happened. At the moment, for us, it’s an open question.
“We’ve got an open mind to all possibilities, but we certainly don’t believe at this stage it looks like a homicide.”
The investigation has been able to address some of the more “bizarre” aspects of Wallace’s disappearance, Lawson said, but he declined to give further details.
Mount Canobolas temperatures have dropped below zero this week. There were also strong, cold winds and rain on some days.
“The tragic reality is that day by day, the chances of finding her alive are diminishing, but we still hold hope and we’re still in contact with the family,” Lawson said. “We’ll only know when we find her.”
Police considered the concerns of Wallace’s son, Tyrone Stewart, who told the Central Western Daily It was not her thing to go bushwalking in order to see the sunrise.
“We factor it in when we make decisions … about where we should search and about the behaviour of lost persons,” Lawson said. “It’s a whole breed of science about the psyche and the intent of people that go missing.”
To aid the police operation, specialist search dogs will be brought up the mountain in the early part of next week.
Police rescue officers walked the Federal Falls trail Friday morning, following a steep path that leads up to a rapid-running waterfall.
Lawson said that Wallace would not have made it off the mountain without assistance, but continued to appeal to the community for help.
Crime Stoppers can be reached at 1800 333 000 if you have any information.
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