In case of blackmail, bribery, threats, inducements to commit a crime, a sedition there cannot be better evidence then be spoken words transcribed on the tape.
It is something like a photograph of the offender caught red handed while committing the act of Murder or housebreaking. A tape recorded conversion is admissible in evidence provided the court is satisfied that there was no tempering, dubbing and imperfect recording.
The majority of The Supreme Court in Pratap Singh vs. State of Punjab (1964) 4 SCR 733, AIR 1964 SC 72.held that tape recordings are not inadmissible merely on the ground of possibility of their being Tempered with. Raghubir Daval and MudholKar, J.J. held that the tape recorded conversation can only be Corroborate evidence, but cannot be direct or primary evidence that the third person stated what the other speaker had told.
They observed, however, that weight to be given to such evidence will depend on the other factors which may be established in particular case.
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