A retired detective has told the retrial of David Bain, charged with the murder of five members of his family, of finding two white gloves covered in blood in the bedroom of Bain's brother Stephen.

David Bain denies charges of murdering five members of his family - his father Robin, mother Margaret, and siblings Laniet, Arawa, and Stephen in Dunedin in 1994.

Sergeant Milton Weir said that when the bed was removed from Stephen's room the police found a white glove covered in blood under it, which was inside out, Christchurch's Court News website reported.

Next to the glove was Stephen's school jersey with a shirt inside it, also with blood drops on it.

When the jersey was removed a second white glove covered in blood was found under it.

Also under the bed were two spent .22 cartridge cases and a piece of newsprint with a bloodstain on it, which Mr Weir said came from a part of the wall where the wallpaper had peeled back.

Police also located two pieces of skin on the floor of Stephen's room.

Mr Weir's evidence will continue on Monday.

Former Detective Constable Trevor Thomson told the court that the bone fragments he found in the room where Robin Bain lay were on the floor near the rifle.

He said there was a mistake in the exhibit register which said they were under the computer in the alcove.

He said a lens found in Stephen's bedroom was found under a skate-boot.

Next week scientists from Environmental Science and Research (ESR) will give evidence on the scene of the murders.

Following their evidence, the pathologists who examined the five bodies found at the Bain house in Every Street will be heard during the weeks either side of Easter.

Today was the 14th day of the retrial before Justice Graham Panckhurst and a jury in the High Court at Christchurch.

The trial adjourned for the week early this afternoon. It may last three months.