Police investigating the death of dairy farm worker Tony Waldron have seized a vehicle and are carrying out a scene examination at a Christchurch house.
A homicide investigation was launched after the body of the 29-year-old father of two was discovered at a Gardiners Rd house in rural Rakaia on September 18th.
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No details of how he died have been released, however, police said initial reports that Waldron had received gunshot wounds were incorrect.
Detective Senior Sergeant Richard Quested of Canterbury Police said good progress was being made and police were following strong lines of enquiry.
"A scene examination at a second Gardiner's Road property in Rakaia has been completed and the focus of the search has now moved to the Rakaia river bed," he said.
Police had also executed a search warrant at a property in Papanui in Christchurch and a scene examination was underway there.
"A vehicle has also been seized and that too will be forensically examined in the coming days."
Quested said the enquiry team continued to work long hours and was leaving no stone unturned in the hunt for those responsible for Mr Waldron's death.
Police are still asking anyone with information that could assist the enquiry to contact them on 105 or go to the nearest police station.
Information could also be provided anonymously via Crimestoppers on 0800 555111.