Senior chemist Nor Aidora Saedon testified today that bloodstains on two sheets of diary paper containing Zara Qairina Mahathir’s handwriting matched the Form One student’s DNA.

The 52-year-old senior director at the Chemistry Department’s Centre for Quality Management and Research in Selangor was testifying during the inquest into the student’s death.

She told the Coroner’s Court that the bloodstains were...