Shanti and Prashant Bhushan are in the news for the wrong reason of late. The elder Bhushan has been "caught" on tape saying his son can fix a case with a judge. Apparently different labs are giving conflicting reports. There are two questions that come to my mind.
1) The government was in the news, again for the wrong reason of tapping phones some time back. So does the CD contain voice samples that were somehow obtained by the government by surreptitious means?
2) I wonder if it is possible to fake the CD. First you splice the individual samples together giving the appearance of a continuous conversation. This can probably be detected by forensic labs. Now if you play this "conversation" via a high audio fidelity device and record it onto a different tape/CD can a forensic lab detect this?