Police say there is "strong evidence" a missing 78-year-old woman's body was dumped in a wheelie bin in inner-city Brisbane.
Lesley Trotter, from Toowong, was reported missing on March 28.
Authorities are yet to find her body, but believe it was in a bin near her home that morning.
Ms Trotter was known to sort through her neighbours' rubbish, which could be linked to her death, Detective Superintendent Andrew Massingham said.
"It is certainly an issue that has been raised by a number of people," he said.
"And we can't rule out that that has something to do with her death."
The rubbish was collected from the street the same morning Ms Trotter was reported missing.
"Over that morning, that bin was collected by rubbish truck, [as it was] each Tuesday," Detective Superintendent Massingham said.
He said the rubbish was then dropped into a pit at the Nudgee Waste Transfer Station, along with loads from 22 other trucks.
It was then compressed and taken to dumps at Rochedale and Swanbank.
Both sites were quarantined over the weekend and officers are planning an "extensive search" to recover Ms Trotter's body, he said.
Detective Superintendent Massingham said it would be "complex and difficult operation".
"I expect once engineers finalise their ability to scale down areas of search, that we will be in a position by the end of this week to commence a piece-by-piece search of that general waste to recover her body," he said.
He said it was a "very sad story" and a "traumatic" time for family.
"Ms Trotter's next of kin have been advised of these developments," he said.
"This is confronting for them."
Detective Superintendent Andrew Massingham said there are currently no suspects.
"At this stage, we have got to treat this matter as suspicious until we're able to show otherwise."
"Due to the positioning of the body, I can't rule out foul play at this stage," he said.
Police are yet to determine a cause of death.
A crime scene has been set up at her Maryvale Street apartment.
