BANGKOK : -- Royal Thai Police commissioner revealed Saturday that latest DNA examination has now confirmed Asian suspects responsible for the rape and murder of the English tourist in Koh Tao.
Pol Gen Somyot Phunphanmuang
disclosed the latest test of DNA samples collected from semen found
inside the vagina and annal of Ms Hannah Witheridge, 23, showed they
belonged to Mongoloid people or Asians.
He revealed the finding just before
boarding a flight to Surat Thani today to direct the investigation and
hunting down the suspects.
The latest discovery has now
enabled the police to narrow their investigation to focus on specific
groups, migrant workers and local Thai people.
Pol Gen Somyot also said the Royal
Thai Police has now suspended its earlier plan to seek help from the
Federal Bureau of Investigation (FBI) after forensic doctors could
conduct deeper test of the Y chromosome DNA test.
A Y chromosome DNA test (Y-DNA
test) is a genealogical DNA test which is used to explore a man’s
patrilineal or direct father’s-line ancestry.
The genealogical DNA test looks at a
person’s genome at specific locations. Results give information about
genealogy or personal ancestry.
In general, these tests compare the
results of an individual to others from the same lineage or to current
and historic ethnic groups.
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