Chambers of Ishaan Garg
Ch. No. 217, Western Wing, District & Sessions Court, Tis Hazari, New Delhi, Delhi 110054
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We will first consider the argument, a State argument often heard, particularly in criminal courts, that the opinion-evidence of a handwriting expert should not be acted upon without substantial corroboration. We shall presently point out how the argument cannot be justified on principle or precedent. We begin with the observation that the expert is no accomplice. There is no justification for condemning his opinion-evidence to the same class of evidence as that of an accomplice and insist upon corroboration. True, it has occasionally been said on very high authority that it would be hazardous to base a conviction solely on the opinion of a handwriting expert. But, the hazard in accepting the opinion of any expert, handwriting expert or any other kind of expert, is not because experts, in general, are unreliable witnesses--the equality of credibility or incredibility being one which an expert shares with all other witnesses--, but because all human judgment is fallible and an expert may go wrong because of some defect of observation, some error of premises or honest mistake of conclusion. The more developed and the more perfect a science, the less the chance of an incorrect opinion and the converse if the science is less developed and imperfect. The science of identification of finger-prints has attained near perfection and the risk of an incorrect opinion is practically non-existent. On the other hand, the science of identification of handwriting is not nearly so perfect and the risk is, therefore, higher. But that is a far cry from doubting the opinion of a handwriting expert as an invariable rule and insisting upon substantial corroboration in every case, howsoever the opinion may be backed by the soundest of reasons. It is hardly fair to an expert to view his opinion with an initial suspicion and to treat him as an inferior sort of witness. His opinion has to be tested by the acceptability of the reasons given by him. An expert deposes and not decides. His duty 'is to furnish the judge with the necessary scientific criteria for testing the accuracy of his conclusion, so as to enable the judge to form his own independent judgment by the application of these criteria to the facts proved in evidence'. (Vide Lord President Cooper in Decie v. Edinburgh Magistrate 1953 SC 34 quoted by Professor Cross in his Evidence).
We are firmly of the opinion that there is no rule of law, nor any rule of prudence which has crystallised into a rule of law, that opinion evidence of a handwriting expert must never be acted upon, unless substantially corroborated. But, having due regard to the imperfect nature of the science of identification of handwriting, the approach, as we indicated earlier, should be one of caution. Reasons for the opinion must be carefully probed and examined. All other relevant evidence must be considered. In appropriate cases, corroboration may be sought. In cases where the reasons for the opinion are convincing and there is no reliable evidence throwing a doubt, the uncorroborated testimony of an handwriting expert may be accepted. There cannot be any inflexible rule on a matter which, in the ultimate analysis, is no more than a question of testimonial weight.
IN THE SUPREME COURT OF INDIA
Criminal Appeal No. 125 of 1975
Decided On: 21.11.1979
Murarilal Vs. State of M.P.
Hon'ble Judges/Coram:
R.S. Sarkaria and O. Chinnappa Reddy, JJ.
Citations: 1980 AIR 531, 1980 SCR (2) 249
