Rampurhat (WB), Apr 6 (PTI) The CBI, as part of its investigation into last month's Birbhum killings in Bengal, moved a local court on Wednesday to seek permission for conducting polygraph tests on eight people arrested in the case, including TMC leader Anarul Hossain, an official of the probe agency said on Wednesday.

The polygraph test is "necessary" to take forward the investigation, he said.

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"We need to double check what Hossain and others have been telling us during the course of their interrogation," the CBI official told PTI.

Miscreants had attacked and set fire to houses in Birbhum's Bogtui village on March 21, killing nine people, including children, following TMC panchayat official Bhadu Sheikh's murder.

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The Calcutta High Court has directed the Central Bureau of Investigation (CBI) to conduct a probe into the massacre that happened in the aftermath of Sheikh's murder.

Earlier, an SIT formed by the West Bengal government was probing the case.

The TMC panchayat official's murder, however, is being investigated by the district police.

During the day, a team of CBI sleuths visited the residences of Sona Sheikh and Fatik Sheikh, two Bogtui residents whose houses were set ablaze, and collected requisite samples.

"Necessary samples have been collected from their residences today. We are planning to send them for forensic tests," the CBI official said.

According to the official, Sona Sheikh, wanted by the police for his involvement in a local dispute, had been on the run for over a year.

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)