A landfill site in Adelaide's north is being searched as police continue to look for the remains of a man whose dismembered torso was found in a wheelie bin.
Police converged on the Uleybury site on Monday as they tried to find the head and limbs of Geoffrey McLean.
Mr McLean's torso was found stuffed into a wheelie bin on a vacant block at Salisbury South in October last year.
The 55-year-old had been reported missing several weeks earlier.
Four people have so far been charged in relation to his death, two with murder and two with assisting an offender.
The landfill site takes baled household and commercial waste with about 86,000 tonnes dumped each year.
Detective Superintendent Des Bray said search teams would examine between 100 and 150 bales, checking on the contents using rakes, and other tools and by hand if necessary.
About 30 people were involved in the operation working across two shifts.
Supt Bray said detectives were optimistic they had identified the right bales to check for Mr McLean's remains.
"Nobody would want their loved ones discarded and put into a landfill," he told reporters at the scene.
"We're committed to doing everything humanly possible to recover his remains, no matter how difficult or challenging that might be or how long it takes."
