The infringement of Fundamental right to privacy cannot be raised to create a bubble to scuttle the investigation nullifying the evidence collected by merely denying that the voice of the tapped phone calls is not of the petitioners and there being no comparables.
 With the advancement of technology, the modes of communication are changing. To keep pace with the change, new technology is required to be used for collecting and comparing evidence.
One method being tapping of communication devices but after compliance of the procedure laid down. It is in that context that taking of voice samples are necessitated. The samples collected are not evidence in itself, rather are tools to identify the voice recording collected as evidence.
204 PLR 572