sandeep ghosh polygraph test completed now asi anup dutt turn cbi gets permission from court

A Kolkata court has allowed the Central Bureau of Investigation (CBI) to conduct a polygraph test on Anup Dutta, an assistant sub-inspector (ASI) of the Kolkata police, in connection with the ongoing investigation into the rape and murder of a woman trainee doctor at a government hospital. The CBI is probing whether Dutta played a role in covering up the crime involving the rape and murder of the trainee doctor. Officials have indicated that Dutta may have provided various benefits to prime suspect Sanjoy Roy. The central agency is probing whether Roy had given details of the crime to Dutta and whether he received any assistance in covering it up.

Earlier in the day, the CBI completed the polygraph test on the third day of a series of deception detection tests (DDTs) on former RG Kar Medical College principal Sandip Ghosh. He underwent a layered voice analysis test on Saturday, followed by a polygraph test on Monday. Officials said the test could not be completed on Monday, so it was resumed on Tuesday.

Layered voice analysis is a new DDT in the arsenal of forensic experts. It detects the speaker’s reaction to a lie but does not identify the lie itself. The technology identified stress, cognitive processes and emotional cues in different voice qualities. Polygraph testing, also known as DDT, can help assess inaccuracies in statements of suspects and witnesses. By monitoring their psychological reactions – heart rate, breathing patterns, sweating and blood pressure – investigators can determine if there are inconsistencies in their responses. However, these are not admissible evidence during a trial and can only be used to obtain further information in a case.