The DNA forensic investigator failed to record findings of at least two unknown samples found on Mohd Saiful Bukhari Azlan’s black trousers and lower rectal area, the Kuala Lumpur High Court heard today.

NONE During cross-examination by Ram Karpal Singh, Chemistry Department DNA speacialist Dr Seah Lay Hong (right) agreed that certain "high" allele readings that appeared on her DNA analysis equipment did not appear on her chemist's report.

This was first pointed out to the defence team by Australian DNA expert Dr Brian McDonald.

Seah, the fifth prosecution witness and head of the Serious Crime Unit of the Chemistry Department, agreed said this was not recorded as she felt it was not significant.

The two allele readings, measured in percentages, were a 14.4 percent reading recorded on a stain from the lower part of Saiful’s trousers and a 28.4 percent reading recorded from the lower rectal swab.

In view of this, Ram Karpal raised the possibility that at least another two unknown DNA profiles were not on record. This includes a profile obtained from swab B9 from the lower rectal area.

"This does not belong to Saiful or 'Male Y'. The reading 28 allele is not reported although it has a high peak,” said Ram Karpal.

When Ram Karpal continued with this line of argument, the chemist refused to respond, even after the defence lawyer complained to Justice Mohamad Zabidin Mohd Diah.

'Male Y' remains a mystery

In view of Seah’s earlier testimony that she found three male DNA profiles - 'Male Y', an unknown male and Saiful’s - on two patches of semen stains found on Saiful’s undewear, Ram Karpal remarked: "It seems half a football team's DNA is found on Saiful but you chose not to report as it is detected on the underwear, trousers and B5 peri-anal area, and now B9."

azlan He also raised Seah’s non-compliance with guidelines set by the International Society of Forensic Genetics, of which she is a member, on handling mixed DNA.

Asked by the judge why she did not comply with the guidelines, Seah did not offer any response.

She also testified that up until today, she was unaware of the identity of the 'Male Y'.

"There is no specimen or reference sample provided (by the police)," she said.

Seah also told the court that the police only provided Saiful's blood sample as a reference sample.

Ram Karpal then suggested that the other unidentified male could be anybody, including police investigating officer Jude Blacious Pereira.

The witness also told the court she did not find any stains on the carpet and blue duvet, recovered from the scene of the alleged incident.

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