Bhushans` audio file could not have been tampered with: CFSL
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Last Updated: Friday, April 22, 2011, 00:37
  
New Delhi: Forensic analysis of the CD allegedly involving former Law Minister Shanti Bhushan, done by a government laboratory, has said that the conversations in the audio file examined "could not have been tampered" with as alleged by civil society activists.

The Central Forensic Sciences Laboratory (CFSL) located at Lodhi Road conducted the analysis of the CD which have purported conversations between Bhushan and political leaders Mulayam Singh Yadav and Amar Singh following Delhi Police approaching it for examination.

The purported telephone conversation among Shanti Bhushan, SP chief Mulayam Singh Yadav and Amar Singh suggested attempts being made at influencing a judge.

"Recorded conversation is in continuity and no abrupt change in speech signal has been detected," police sources said quoting from the report prepared by four senior CFSL scientists, including its Director Rajinder Singh.

In their five-page report, sources said, the scientists have said that the conversation was "continuous and without any break and the audio file appeared not to have been tampered".

The CD had an audio file of size 2,260 KB and the duration of the recording was of one minute and 55 seconds.

The report concluded that the recorded conversation is in "contextual continuity. (There was) no abrupt change in the phase of speech signal could be detected."

"No change in the background noise pattern throughout the recording could be observed," the report said.

"Hence the recorded conversation in the CD marked as exhibit 'Q' could not have been tampered. However, complete examination for authenticity of recorded conversation can be carried out, if original recording is made available for examination," the report said.

The CD and its transcript were shown to complainant Shanti Bhushan, who is co-chairperson of the joint committee to draft the Lok Pal Bill, and got it countersigned by Bhushan before it was given to the lab for testing, they said.

Delhi Police spokesperson Rajan Bhagat said the case has been transferred to the special cell for investigations.

Sources said they may call in Bhushan for questioning in connection with the case. They also said the genuineness of the CD can be conclusively proved if they can find the original CD and compare it with the audio files.

However, S R Singh, Director of Truth Labs, which conducted its tests on behalf of Bhushan, maintained that he would stand by the report he had given that it was doctored.

The conversation had "multiple gaps and signs of electronic editing at very very critical places", Singh had said in his report.

PTI


First Published: Friday, April 22, 2011, 00:37


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