R. Dineshkumar @ Deena v. State Rep. by Inspector of Police & Others
Background
One Vijayan was murdered in Chennai in 2008, and seven persons (including the appellant, A-5) were charged and put on trial. A prosecution witness, PW64 (L. Venkatesh), whose testimony indicated he had initially agreed to the murder-for-hire plot before withdrawing, was sought to be summoned as an additional accused under Section 319 CrPC by the appellant. The Madras High Court held PW64 could not be added as an accused in the same trial on the strength of his own testimony, because he was protected by the proviso to Section 132 of the Evidence Act, though it added (controversially) that he could be separately prosecuted using independent evidence.
Decision Breakdown
The Supreme Court held that the High Court's finding that PW64 could not be tried together with the other accused was itself wrong in law, because the alleged offences (various stages of the same conspiracy to kill Vijayan) were sufficiently connected to permit a joint trial under Section 223(d) CrPC. However, the Court still upheld the ultimate refusal to summon PW64, holding that the proviso to Section 132 of the Evidence Act grants a witness complete statutory immunity from prosecution based on his own compelled courtroom testimony or his Section 164 CrPC statement: this immunity applies regardless of whether the witness volunteered the incriminating answers. The Court traced this immunity through a long line of precedent (Gopal Doss, Laxmipat Choraria, Nandini Satpathy) as a facet of the rule against self-incrimination. It ultimately directed the trial court to consider tendering PW64 pardon under Section 307 CrPC and record his evidence afresh, and disposed of the appeal on that basis.
Lesson Learnt
A witness who testifies in a criminal trial, even if his testimony incriminates himself, cannot later be prosecuted on the strength of that very testimony, because Section 132 of the Evidence Act protects witnesses so that courts get full and truthful evidence without witnesses fearing self-incrimination.