remembered that the offence made punishable by S.138 can be better described as a regulatory offence since the bouncing of a cheque is largely in the nature of a civil wrong whose impact is usually confined to the private parties involved in commercial transactions. In such a scenario, the test of proportionality should guide the construction and interpretation of reverse onus clauses and the accused / defendant cannot be expected to discharge an unduly high standard or proof. In the absence of compelling justifications, reverse onus clauses usually impose an evidentiary burden and not a persuasive burden. Keeping this in view, it is a settled position that when an accused has to rebut the presumption under S.139, the standard of proof for doing so is that of 'preponderance of probabilities'. Therefore, if the accused is able to raise a probable defence which creates doubts about the existence of a legally enforceable debt or liability, the prosecution can fail. As clarified in the citations, the accused can rely on the materials submitted by the complainant in order to raise such a defence and it is conceivable that in some cases the accused may not need to adduce evidence of his / her own. 15. Coming back to the facts in the present case, we are in agreement with the High Court's view that the accused did not raise a probable defence. As noted earlier, the defence of the loss of a blank cheque was taken up belatedly and the accused had mentioned a different date in the 'stop payment' instructions to his bank. Furthermore, the instructions to 'stop payment' had not even mentioned that the cheque had been lost. A perusal of the trial record also shows that the accused appeared to be aware of the fact that the cheque was with the complainant. Furthermore, the very fact that the accused had failed to reply to the statutory notice under S.138 of the Act leads to the inference that there was merit in the
