Blood from two of five women a man is accused of killing was found on a jacket at his Ipswich home, a forensic scientist has told a court.
Dr Peter Hau said there was a "one in a billion" chance blood on Steve Wright's coat did not match DNA profiles of Paula Clennell and Annette Nicholls.
The bodies of Miss Clennell, Miss Nicholls, Annelli Alderton, Gemma Adams and Tania Nicol were found in 2006.
Mr Wright, 49, on trial at Ipswich Crown Court, denies their murders.
Dr Hau said blood likely to have come from Miss Clennell, 24, was found on the back of the left sleeve of the reflective jacket.
Stained gloves
A sample matching 29-year-old Miss Nicholls' profile was then found on the lower right sleeve, jurors were told.
The court also heard Miss Clennell's DNA was found on gardening gloves in the pocket of the defendant's jacket.
"There's very strong support for the view that Mr Wright was wearing the semen-stained gloves when he was in contact with Miss Clennell," Dr Hau said.
Miss Clennell's DNA had been found in the thumb area of each glove, he explained, along with semen likely to have originated from Mr Wright, a forklift truck driver.
The bodies of the five women, who all worked as prostitutes, were found over a 10-day period in December 2006.
Dr Hau had told the court on Thursday how Mr Wright's DNA had been found on Miss Clennell, Miss Alderton and Miss Nicholls, in whose case it was from "top to toe".
However, in cross-examination, defence barrister Timothy Langdale QC, suggested to Dr Hau that such an assertion might not be significant.
"Somebody who may sweat a lot may be more prone to shedding their DNA than someone else," he said to Dr Hau, who agreed with him.
Report questioned
Mr Langdale went on to question Dr Hau, by suggesting in court that the forensic scientist's opinion about the origin of DNA found in Mr Wright's Ford Mondeo had changed.
In court on Thursday, Dr Hau had said that DNA found in seven flecks of blood on the back seat of the car matched Miss Clennell's profile, with a "one in 56,000 chance" it did not.
However, Mr Langdale pointed out that in his initial report, submitted to the court on 15 January, Dr Hau had said it was not possible to identify the source of the DNA in the car.
The trial was adjourned is due to continue on Monday.
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