Police searching a property where they believe a missing woman was held hostage and tortured for two weeks before being murdered found packaging and labels for floorboards, a court heard.
Lynda Spence, 27, has not been seen since leaving her parents' home in Glasgow in April 2011.
David Parker, 37, from West Kilbride, Paul Smith, 47, from Largs, Philip Wade, 42, from Glengarnock, all North Ayrshire, and Colin Coats, 42, from Glasgow, deny abducting, torturing and murdering her.
They are alleged to have forced Ms Spence into a car and held her hostage in a West Kilbride flat for up to a fortnight, where they are said to have blindfolded her and cut off her thumb.
The men are accused of crushing the woman's toes, burning her hands, severing her finger and hitting her with a hammer and a golf club, in an apparent bid to extract financial information from her.
Prosecutors say the men cut off Ms Spence's head and attempted to cover up their crimes by bleaching floors, pulling up carpets and laying new floorboards. They believe she was held between April 14 and 28, 2011.
At the High Court in Glasgow, the jury heard from detective sergeant Aileen Boyle, from Strathclyde Police, who was appointed the crime scene manager for part of a search of a property at Meadowfoot Road, West Kilbride, where prosecutors say Ms Spence was held.
Officers were looking for a number of items, including body parts, blood, teeth, hair, cleaning products, weapons, carpets and any sharp cutting equipment, Ms Boyle said. The jury was shown images of the property, including an aerial shot and 360-degree pictures of the street outside, and front and back gardens, where there was a considerable amount of rubbish and debris.
Ms Boyle said a green bag with a label for chipboard floorboard pieces was taken away for further investigation during a search on November 7, as well as a mop head and a bag with some nails. The items were traced to a B&Q sales transaction on May 25.
Parker, Smith, Wade and Coats deny 26 charges against them.