Critical CCTV footage showed Sanjay Roy entering the seminar hall where the crime occurred and leaving hurriedly soon after. This visual evidence, combined with access logs, played a crucial role in the case against him.
BY PC Bureau
Evidence Presented by CBI Against Sanjay Roy in the RG Kar Hospital Case
The Central Bureau of Investigation (CBI) built a robust case against Sanjay Roy, the prime accused in the rape and murder of a 31-year-old trainee doctor at RG Kar Medical College and Hospital, Kolkata. Below is a detailed account of the evidence presented:
1. DNA and Biological Evidence
DNA Match: DNA samples collected from the victim’s body were found to match Sanjay Roy’s DNA, linking him directly to the crime.
Biological Samples: Samples such as blood, saliva, and skin cells recovered from the victim’s body and the crime scene corroborated Roy’s involvement.
Crime Scene Evidence: Biological traces of Roy were found on the victim’s clothing and in the vicinity of the seminar hall where the incident took place.
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2. Injuries on Sanjay Roy
Medical reports documented five distinct injuries on Roy’s body, consistent with a struggle during the attack. These injuries aligned with the victim’s attempts to defend herself.
The victim’s fingernail scrapings contained Roy’s skin cells, supporting the claim that she fought back against her attacker.
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3. Witness Testimonies
Over 120 witnesses were interviewed during the investigation. Several staff members and trainees at the hospital provided crucial statements linking Roy to the crime.
Witnesses confirmed seeing Roy near the seminar hall around the time of the incident, despite him having no legitimate reason to be there.
4. CCTVs and Digital Evidence
CCTV Footage: Footage from the hospital’s surveillance cameras captured Roy entering the seminar hall late at night and exiting in a hurried manner shortly after.
Access Logs: Investigators found discrepancies in the hospital’s access records, implicating Roy in tampering to gain unauthorized entry.
5. Forensic Findings
Viscera Report: Post-mortem and forensic analysis confirmed that the victim died of manual strangulation, with injuries indicating a brutal assault.
Toxicology Tests: Ruled out the possibility of sedation or drugging, supporting the theory of a direct physical assault by Roy.
6. Recovery of Personal Items
The victim’s stolen belongings, including her phone and ID card, were recovered from Roy’s possession during his arrest.
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7. Behavioral Evidence
Witnesses described Roy’s suspicious behavior in the days leading up to the crime. Reports highlighted his unprofessional conduct and a history of harassing female colleagues.
8. Previous Complaints Against Roy
Although not directly linked to this crime, records showed previous informal complaints against Roy for inappropriate behavior, further establishing a pattern of misconduct.
9. Statements from Medical Experts
Experts testified that the nature of the injuries and evidence of a violent struggle were consistent with the timeline and Roy’s physical presence at the hospital.
10. Tampering with Evidence
Roy was linked to efforts to destroy or tamper with evidence, including attempts to wipe his fingerprints and remove traces from the crime scene.
CBI’s Conclusion
The culmination of biological, forensic, and testimonial evidence painted a clear picture of Sanjay Roy’s involvement. The defense was unable to counter the overwhelming proof presented during the trial, leading to his conviction by the Sealdah Court.
