Believe Me, Lingam Tape is Genuine

What is the rationale for Najib Razak to appoint a three-man panel to authenticate the Lingam tape? The credentials of those appointed are more suited to adjudicate a court case with the exception of social activist, Lee Lam Thye. What we perhaps need are people with technical expertise to determine the authenticity of the tape using forensic and other specialised methods.
However, even a layman with no expertise whatsoever can easily vouch from the tone of voice and the mannerism of the speaker that it was a genuine tape.
Even the topic that revolves around the appointment and rejection of judges bear a stark semblance of reality. Lingam would have to be an expert soothsayer to predict the outcome of the appointment and promotion of the judges and chief judge that was elevated subsequently.
The most convincing piece of evidence was the video picture of Lingam gesturing with his hands as he talked. The words and sentences that flowed from his mouth did not appear to be dubbed or there would have been a mistiming of his gestures and his words.
If ordinary mortals like me can surmise the accuracy of the tape, I wonder what the technical experts can do if given the opportunity to authenticate the tape.