Former media honcho Peter Mukerjea will be brought to the capital again by CBI for further investigation in connection with the murder of his step daughter Sheena Bora and may be subjected to polygraph and brain mapping tests.
Sources said CBI is looking into his alleged investments abroad and custodial investigation was necessary to further the probe.
The sources did not rule out the agency subjecting him to scientific tests like polygraph, brain mapping etc.
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Mukerjea was taken into custody on November 19 and was examined at the agency's headquarters here.
He was taken to Mumbai where he was produced before the special court which has extended his CBI custody till November 30.
