Fibres linked to a man accused of murdering five women were transferred to two victims about the time their bodies were dumped, a court has heard.
Fibres linked Steve Wright to two victims, the court heard
An expert in examining microscopic material said fragments found on Anneli Alderton and Annette Nicholls matched those extracted from Steve Wright.
Ray Palmer said matches were made to fabrics from Mr Wright's clothing, car and home in Ipswich.
Mr Wright denies killing the women, whose bodies were found in 2006.
He is accused of murdering Miss Alderton and Miss Nicholls as well as Paula Clennell, Tania Nicol and Gemma Adams.
Ipswich Crown Court earlier heard how blood likely to belong to Miss Clennell was found in Mr Wright's car.
The bodies of the five women, who all worked as prostitutes, were found over 10 days in December 2006 around Ipswich.
'Placed when dumped'
Mr Palmer, a consultant forensic scientist, from the Forensic Science Service, told the court how fibres matching Mr Wright's were like those found on Miss Alderton's body.
These were likely to have been placed on the 24-year-old's body around the time she was dumped, the court heard.
"The findings indicate these fibres were transferred to the naked body around the time she was deposited at the location she was found," Mr Palmer said.
Blood samples were found in Steve Wright's car
"My understanding was that Miss Alderton had showered or bathed the day she went missing.
"If that's the case, I wouldn't expect any fibres on her skin to be present in any significant quantity."
The court heard eight blue polyester fibres "corresponded to the constituent fibres" of the clothing worn by Mr Wright.
"This garment would not normally be expected to shed its fibres well. However, there were a number of damaged areas and a lot of pilling," he said.
"The damaged area and the pilled area would mean this particular part of the garment would be expected to shed fibres."
Considerable rainfall and wind hit Miss Alderton's body before it was found on 10 December, jurors heard.
"It would mean that what we are actually seeing here in terms of fibres is a remnant of the number transferred initially," Mr Palmer said.
The court earlier heard how DNA which most likely came from the blood of one of his alleged victims was found in Mr Wright's car.
Forensic scientist Dr Peter Hau said the flecks of blood matched the DNA of one of the women, Paula Clennell.
Jurors heard how Mr Hau had initially not been able to determine from what the DNA sample had originated.
But he was satisfied the DNA sample had come from the blood of Miss Clennell, 24.
Mr Hau said: "In my opinion it's more likely that the result obtained has come from the blood tests rather than the background DNA, if there was any."
The trial continues.