The trial of a Malaysian woman accused of murdering a rival with cyanide-laced satay began today in Kuala Lumpur, with a British forensic team outlining the chemical pathway that led to the victim's death. The case has drawn international attention due to the alleged use of a common street food as a delivery mechanism for a lethal dose of poison.
Prosecutors charge that the defendant, 34-year-old Nurul Izzah binti Ahmad, procured potassium cyanide from an unlicensed chemical supplier and injected it into five sticks of chicken satay at a night market in Petaling Jaya. The victim, 28-year-old Siti Aisyah, died within minutes of consuming the contaminated meat in April 2024.
Today, Dr. James Mercer of the UK's Forensic Science Service gave evidence via video link. He testified that the cyanide concentration in the victim's gastric contents was 8.2 milligrams per litre, a level consistent with rapid systemic toxicity. Dr. Mercer explained that cyanide binds to cytochrome c oxidase, inhibiting cellular respiration and causing death by hypoxia. He noted that the satay's peanut sauce would have masked the bitter almond taste of the poison.
Defence counsel argued that the forensic chain of custody was compromised. They pointed out that the satay samples were stored in a refrigerator that lacked continuous temperature monitoring. Dr. Mercer countered that cyanide is stable at refrigeration temperatures and that decomposition by-products would not have altered the original concentration.
The court also heard from Inspector Razak Ismail of the Royal Malaysia Police, who described the controlled buy operation that led to the defendant's arrest. An undercover officer purchased satay from the defendant's stall on three separate occasions after the victim's death. Subsequent tests on the second and third purchases detected cyanide, though at lower levels.
Justice Jeffrey Tan adjourned the trial until Monday, when the prosecution is expected to call a toxicologist from the University of Malaya. The case has renewed debate in Malaysia about the regulation of toxic chemicals, which are widely available in industrial areas. Analysts say a conviction could prompt legislative reform.
The defendant remains in police custody. She has pleaded not guilty. If convicted, she faces a mandatory death sentence under Section 302 of the Malaysian Penal Code.
