DNA matching the profile of a man was found in the car of the woman he is accused of killing, a court heard.
Jurors at the High Court in Glasgow have previously been told how Emma Faulds owned a blue BMW 1 Series.
The vehicle was examined in September 2019 during the probe into the 39-year-old’s death.
On Tuesday, forensic scientist Joanne Cochrane told how she took a “taping” from a seat lever of the BMW.
The witness said this then matched the DNA profile of Ross Willox, 41, who denies murdering Ms Faulds at his home in Fairfield Park, Monkton, Ayrshire, on April 28, 2019 by means unknown.
Prosecutor Paul Kearney asked: “Could you detect any DNA from Emma Faulds in that taping?”
Ms Cochrane responded “further traces” were described as “unsuitable for interpretation”.
The trial also heard how Willox’s home was also earlier examined.
Mr Kearney asked Ms Cochrane: “The house was found generally to be in a very clean and well-kept condition.
“Was it examined for blood or attempts to clean up blood?”
She replied: “Yes.”
The forensic scientist said two small droplets of blood were found which matched the DNA profile of Willox’s father.
There was also “small contact blood staining” elsewhere said to match Willox.
Jurors were told that was “all the blood that was found”.
The trial, before judge Lord Mulholland, continues.