Mark Lundy murder retrial: Day 15
ESR scientist Bjorn Sutherland was concerned police or ESR staff possibly spread blood around the Lundy house.
Today is Sutherland's third day on the stand. Yesterday, he said a polo shirt found in Mark Lundy's car had traces of blood on it. There were also traces of blood found in the bathroom of Glenn Weggery, Christine Lundy's brother.
Mark Lundy, 56, is accused of staging a burglary, and killing wife, Christine, 38, and daughter Amber, 7 on August 30, 2000. The Crown alleges the pair were killed with a small axe or tomahawk, which has not been found.
Lundy was tried in 2002 and is being retried following a Privy Council ruling, and has pleaded not guilty.
Today is day 15 of the retrial.
Our reporter Jono Galuszka has been in court in Wellington and updated developments throughout the day.
READ MORE: Lundy retrial: full coverage
10.44am: Sutherland raised issues that police or ESR staff possibly spread blood around the house.
In notes from a phone call he made to a police officer, he said he was worried ESR or police staff may have stepped in blood and spread it around the house.
Today, he said the blood spots came up after a luminol test.
The stepping plates used to keep staff off the floor had been removed for the test, so he was worried the blood may have been spread between taking the plates away and doing the test.
There was no obvious footwear pattern in those spots of blood, he said.
10.35am: People who live together could transfer DNA onto each other without the use of blood, Sutherland said.
Defence lawyer David Hislop asked him if people living together could share it by coughing on each other, especially if one had a cold.
Sutherland said it was possible, but how long it stayed there could depend on a range of factors, including how often people cleaned their clothes.
10.25am: Sutherland said he could not exclude the chance that paint flakes, which were found in and around the victims, could have been carried into the house before the murders.
If it was carried in on someone's shoes from the garage, where Lundy kept his tools, which were painted blue and orange, fragments could have been carried inside, he said.
However, fragments could have also fallen off outside.
Something like hair could also carry in fragments, but would do a worse job than something like a woollen jumper, he said.
10.14am: Wet paint was found on one of Christine Lundy's rings.
The court has already heard that she wore three rings at all times.
Sutherland agreed when Hislop said one of the rings had wet blue and white paint on it.
All three rings were bloodstained, and two had dents in them consistent with being struck with a narrow object.