Blood was on David Bain's socks and bloodied sockprints were found in the family home after the slaying of his parents and three siblings, his retrial was told in the High Court at Christchurch today.
Retired Environmental Science and Research scientist Peter Hentschel said there was also blood on the back and hem of one of David Bain's shirts and a spot on the front of a black pair of his shorts.
All the items went for further testing to another forensic scientist, Dr Peter Cropp, for blood grouping analysis. Dr Cropp will also be giving evidence at the trial.
David Bain, 37, has denied shooting dead his family. His defence team say his father Robin Bain shot the rest of the family before turning the .22 rifle on himself.
Dr Hentschel said today he examined David Bain's socks and noticed several spots of blood on them.
He then carried out luminol testing on the socks - using a chemical that reacts with blood and creates a glow - and got a positive reaction on the soles of the socks.
Dr Hentschel said swabs from Bain and skin from his father's hands were tested for gunshot residue but none was found. The jury had been told previously that this test needed to be done within three hours of the gunshots. The tests were not done until much later.
Dr Hentschel said fingernail scrapings from Robin Bain were tested. Dirt and possibly blood were found but there was not enough material for any further tests.
He told the court of the spent shells found in the house and said some were positively fired from the rifle produced as an exhibit in court, and some could have been fired from it.
He said the spectacles found on a chair in David Bain's bedroom had damage on the right arm and lens area. There was only a right lens with the glasses, which was also found on the chair. There was no blood on them.
The trial is in its 17th day before Justice Graham Panckhurst and a jury.
