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Kolkata rape: Did R G Kar ex-principal Sandip Ghosh call an 'influential doctor' on August 9?

Sandip Ghosh made several other calls on the day of the incident around 7 am

R.G. Kar Medical College and Hospital former principal Sandip Ghosh, looks on as CBI personnel raid his residence | AFP

The CBI team, probing the rape and murder of a trainee doctor at R G Kar Medical College Hospital, is monitoring the call details of former principal  Sandip Ghosh and the initial probe hints that he made a long phone call to "someone influential" on the day the woman doctor was found dead. 

Investigative agency sources told Anandbazar Patrika online that Ghosh called an 'influential' doctor close to the top level of the administration on August 9, the day the woman doctor's body was found. The CBI source added that Ghosh also called several other people, including health department officials, around 7 am.

Ghosh had told the CBI that he came to know about the murder only at 9 am. But, the investigating officials are probing why he made the calls long before that.  

The detectives reportedly scrutinised one-month phone records of the principal. But, it did not reveal regular calls with doctors or health officials so early in the morning.  

Meanwhile, the CBI subjected Ghosh to polygraph tests on Tuesday, the third day of subjecting him to a series of Deception Detection Tests (DDT). He underwent a layered voice test on Saturday which was followed by a polygraph test on Monday. The test on Monday could not be completed and resumed on Tuesday, CBI officials told PTI. 

The layered voice analysis is a new deception detection test (DDT) in the forensic arsenal used to detect the speaker's reaction to a lie. Though it does not identify a lie, it can detect stress, cognitive processes, and emotional cues in different properties of the voice.

The ED also tightened its noose around Ghosh by filing a money laundering case in conenction with alleged financial irregularities at the RG Kar Medical College and Hospital during his tenure as the principal. 

The federal agency has taken cognisance of a CBI FIR to file its Enforcement Case Information Report (ECIR), equivalent to an FIR, under various sections of the Prevention of Money Laundering Act (PMLA).

The agency has reportedly gathered banking and medical procurement documents related to the hospital and medical college from "various sources". Ghosh may soon get a summons for questioning and recording of their statements, the sources said.