An Australian DNA expert did not rule out the possibility that Mohd Saiful Bukhari Azlan’s sperm was found in the latter’s own anus, Datuk Seri Anwar Ibrahim’s Sodomy II trial heard today.Dr Brian McDonald (pic) said this was because government chemist Dr Seah Lay Hong did not properly separate sperm cells from non-sperm cells on the complainant’s rectal swabs.
“She was guessing there were epithelial cells in the (sperm) fraction. She did not do her test properly,” said Dr McDonald at the High Court here today.
Dr Seah testified earlier this year that Saiful’s DNA profile came from non-sperm extracts found in his high rectal area.
But Dr McDonald today dismissed her assumption, saying: “She has no evidence to support that.”
During examination in chief by counsel Ram Karpal Singh, Dr Mcdonald told the court, in his opinion, the differential extraction process (DEP) carried out by Dr Seah Lay Hong, who was the prosecution witness, was speculative.
He added that the sperm examined by Dr Seah did not comprise purely sperm heads and there was the existence of other cells there.
McDonald, the fourth defence witness, had testified Thursday that Dr Seah’s testing procedure did not follow international standards.
Anwar, 63, is charged with sodomising his former aide Mohd Saiful, 26, at Desa Damansara Condominium in Bukit Damansara, between 3.01pm and 4.30pm on June 26, 2008.