A homicide investigation was launched after dairy farm worker Tony Waldron was found dead on September 18 at his Gardiner's Rd home in Mid Canterbury.
Detective Senior Sergeant Richard Quested said police are conducting a scene examination at a Hoani St, Papanui property. They are also searching the Rakaia river bed.
A vehicle has also been seized and will be forensically examined in the coming days, he said.
A man, who has interim name suppression, has been charged with allegedly threatening to kill Mr Waldron, as well as possession of ammunition and one drugs charge relating to cannabis.
He was remanded in custody to reappear at the Ashburton District Court on October 14.
Detective Senior Sergeant Quested said the inquiry team are making good progress and following strong lines of inquiry.
A scene examination at a second Gardiner’s Road property in Rakaia has been completed.
"The inquiry team continue to work long hours and are leaving no stone unturned in the hunt for those responsible for Mr Waldron's death," said Detective Senior Sergeant Quested.
Police ask anyone with information to contact them on 105 or go to the nearest police station.
Information can also be provided anonymously via Crimestoppers on 0800 555111.
