Joydeb Patra & Ors. v. State of West Bengal — Chemical Examiner’s report failed to establish poisoning

Part of the Forensic Docket on Legal Desire Forensics — a case where forensic or identification evidence broke down on appeal.

The facts

The accused, a husband and his relatives, were alleged to have murdered a woman by poisoning her.

The courts below convicted them, relying solely on the ocular testimony of the doctor who had conducted the post-mortem examination, and had placed the onus on the accused to prove that the deceased had not died in the manner alleged.

The Supreme Court held this approach to be wrong: neither the Inquest Report, nor the Postmortem Report, nor the Chemical Examiner’s Report showed that death had actually occurred due to poisoning.

Because the prosecution had failed to establish beyond reasonable doubt that poison was administered to the deceased, and because the courts below had wrongly shifted the burden of proof onto the accused, the conviction could not stand and the appeal was allowed.

Why this belongs in the Forensic Docket: A cautionary tale on burden of proof: prosecutors cannot rely on doctor testimony alone to establish poisoning while shifting the burden to the accused — the chemical and postmortem reports themselves must affirmatively support the alleged cause of death.

Case details

Read the full judgment (PDF), sourced from the Indian Supreme Court Judgments open dataset (AWS Open Data Registry, CC-BY-4.0).

Explore more in the Forensic Docket or browse the full Forensics hub.