The additional chief judicial magistrate (ACJM) court in Sealdah on Thursday rejected CBI’s plea for the narco-analysis test of Sanjay Roy, the main accused in the rape and murder of a junior doctor at Kolkata’s R G Kar Medical College and Hospital last month.

The ACJM court’s decision came after Roy refused to give consent to the test to the Central Bureau of Investigation (CBI), which is probing the rape and murder of the R G Kar Medical College and Hospital doctor. The Central agency appealed to the ACJM court, which is hearing the R G Kar rape and murder case, earlier in the day.

Roy, a civic volunteer attached to the Kolkata police, is so far the only person to be arrested and accused in the case. He was arrested on August 10.

According to CBI sources, officials want to verify some facts in Roy’s statement and pursue more questions in connection with the rape and murder case. They said Roy’s narco analyses test is also key to determining whether it was a gang rape. Roy, a civic volunteer attached to the Kolkata police, is so far the only person to be arrested and named as an accused in the case.

The sources said through the narco analysis test, also known as the truth serum test, CBI wants to determine whether Roy was truthful in his statements to the agency, and to know whether he is deliberately hiding facts or misleading investigators.

On August 24, Sanjay Roy underwent a polygraph test inside Presidency Central Jail in the presence of two CBI officers. Later, CBI, which took over the probe following a Calcutta High Court order, interrogated Roy.

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