A BLACK vest top found near schoolgirl Ana Kriegel's body was stained with semen which matched the DNA profile of one of the two boys accused of murdering her, a trial heard.
Forensic scientist Marce Lee-Gorman said there was semen staining on the back hem area and the upper right shoulder area of Ana's black vest top, and that it matched Boy A's DNA profile.
She also said the black top was damaged. It was torn completely along a side hem, the right shoulder strap had been stretched and pulled and the left shoulder strap was torn in two pieces, one of which was still attached.
The two youths, aged 13 at the time, have pleaded not guilty before the Central Criminal court to the murder of Ana Kriegel (14) at Glenwood House, Laraghcon, Clonee Road in Lucan on May 14 last year.
One of the accused, Boy A, has also denied a charge of aggravated sexual assault.
In her evidence this morning, Ms Lee-Gorman said she found two areas of semen staining on the vest top. She cut out samples of the areas to further examine them under the microscope for any DNA. She found two main contributors and one trace contributor.
The trace contributor sample was not suitable for interpretation, she said.
Ms Lee-Gorman said she had looked at two possibilities, that either the mixed DNA profile was a match for Ana Kriegel, Boy A and an unknown or that the DNA was a mix of three unknown people unrelated to Ana.
Ms Lee-Gorman said her finding was that it was a thousand million times more likely that the DNA was a match to Boy A, Ana and an unknown.
She said that she could not determine when the semen was deposited, but it had happened since the top was last washed.
Ms Lee-Gorman also examined a white bra. The fabric joining both cups and the band below the cups was torn.
The bra was "quite sturdy" and it would take a lot of manipulation and "pulling and tugging" to tear it apart, she said.
Ms Lee-Gorman said there was blood staining on the bra, and the DNA matched that of Ana Kriegel. There was minor male DNA on the bra but this could not be identified, the court heard.
In his evidence, Dr Edward Connolly, also from Forensic Science Ireland, said he examined a role of Tescon-branded blue tape, which was found around Ana's neck. The DNA on one of the tape ends matched Ana's DNA.
Earlier, Detective Garda Melissa Lyons, from the fingerprint section of the Garda Technical Bureau, gave evidence she tested a backpack and its contents, namely a pair of black woollen gloves, black snood, knee pads, shin pads and mask, for finger and palm prints.
Gda Lyons said she found no identifiable marks on any of the items.
Gardai have also given evidence of obtaining a search warrant and searching Boy B's home on May 24, 2018.
The trial continues before Mr Justice Paul McDermott and a jury of eight men and four women.
Schoolgirl Ana Kriegel's blood was found on a backpack, a pair of gloves, a mask and a set of knee pads which gardaí seized from the home of one of the boys accused of murdering her, a trial has heard.
A BOY accused of murdering Ana Kriegel told a detective that his co-accused had arranged to met the school girl in the park because he "didn't want to be seen with her", a trial heard.