[BREAKING] Kolkata Rape Horror: Prime Accused Sanjoy Roy Sent to 14-Day Judicial Custody, CBI Gets Approval for Polygraph Test

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Sanjoy Roy, accused in Kolkata doctor rape-murder case, sent to 14-day judicial custody

Kolkata: Today (23rd Aug): A Kolkata court has placed Sanjoy Roy, accused of raping and killing a trainee doctor at RG Kar Hospital, under 14 days of judicial custody. Roy was brought to Sealdah Civil and Criminal Court under tight police security after his CBI custody ended on Friday.

READ ALSO: [RG Kar Rape & Murder Case] CBI Approved to Conduct Polygraph Test on Ex-Principal of Hospital & Four Others

In a separate trial, a special court in Kolkata has permitted the CBI to administer a polygraph test on Sanjoy Roy. Although polygraph results are not admissible in court, they are used to assist investigators in their inquiries.

Roy, a civic volunteer with Kolkata Police stationed at the RG Kar Medical College and Hospital, was arrested the day after the semi-naked body of a 31-year-old doctor was discovered on August 9. His arrest followed the release of CCTV footage showing him entering the hospital’s emergency building where the doctor was found murdered.

Roy, who had a history of domestic abuse, was also known to frequently visit the hospital.

Earlier, a special court in Kolkata granted the CBI permission to administer a lie detector test to Dr. Sandip Ghosh, the former principal of RG Kar Hospital, where a 31-year-old trainee doctor was raped and murdered.

The court also sanctioned polygraph tests for four other doctors, who were colleagues of the victim and had been with her on the night of the crime, sharing dinner together.

READ ALSO: [RG Kar Rape] “Everyone Deserves a Defense and a Fair Trial, Free From Pre-Trial Judgments”: Woman Lawyer Kabita Sarkar to Defend Accused Sanjay Roy

A CBI official informed,

“The CBI has sought permission from the Sealdah ACJM court to conduct a polygraph test on former principal Dr. Sandip Ghosh and four doctors from RG Kar Hospital. They were brought before the court on Thursday, and permission has been granted.”

This follows a directive from the Supreme Court, which, during a hearing on a suo moto case related to the incident, instructed the Sealdah court to issue the necessary orders by 5 pm on Friday.

A bench comprising Chief Justice of India DY Chandrachud, Justices JB Pardiwala, and Manoj Misra stated,

“The request for conducting a polygraph test has been submitted before the ACJM Sealdah and is reportedly under process. The ACJM Sealdah is to pass orders on the application no later than 5 pm on August 23,”

According to CBI sources, investigators have decided to administer polygraph tests on five individuals connected to the ongoing investigation. These tests are designed to uncover the truth behind the statements provided by those being tested.

What is a polygraph test?
A polygraph test, commonly known as a lie detector test, measures and records physiological indicators like blood pressure, pulse, respiration, and skin conductivity while a person answers a series of questions. It is based on the principle that deceptive answers will produce distinct physiological responses compared to truthful answers.

How is a polygraph test conducted?
The process begins with a pre-test interview to collect preliminary information and develop diagnostic questions. During this phase, the examiner reviews the test questions with the examinee and explains the testing procedure.

Next, a ‘stim test’ is performed where the subject is asked to lie deliberately, and the examiner checks if this lie is detectable.

The actual test follows, during which the examiner administers and records multiple polygraph charts based on various questions and techniques. The subject is deemed to pass if the physiological responses to diagnostic questions are significantly greater than those to relevant questions.

Are polygraph tests accurate?
Polygraph tests are not scientifically proven to be entirely accurate, with scientific and government bodies often citing their limitations and potential for inaccuracy. Guilty subjects might show increased anxiety due to the test’s pressure, but innocent subjects may also experience similar anxiety.

Polygraph results are not considered a “confession” and are not admissible in court. They are used primarily to aid investigators in their inquiries and to gather leads.

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