The jury at the trial of a man accused of the murder of Machynlleth schoolgirl April Jones is hearing from a forensic scientist.
Emma Howes said blood found on the floor and on the underside of the living room carpet at Mark Bridger's house matched April's DNA profile - there was a one-in-a-billion likelihood of it being someone else's blood.
She said whatever blood had been present on the topside of the carpet had been removed.
Her conclusion is that it appears from the size of the stain that it was made by direct contact from April herself.
Mark Bridger, 47 and from Machynlleth, denies murder, abduction and intending to pervert the course of justice.
The trial, at Mold Crown Court, continues.
The parents of murdered April Jones fear that killer Mark Bridger may never reveal where the body of their daughter is.
ITV News correspondent Carole Green has covered the month-long trial of Mark Bridger at Mold Crown Court. Here she gives her personal view.
The disappearance of April Jones prompted the biggest search of its kind in British policing history.