for chemical analysis has not been marked in this case. There is no evidence to show that the sample taken from the contraband produced before the Magistrate was the one sent for chemical analysis. All these grounds have been held to be sufficient grounds to acquit the accused in the decisions referred to by the learned counsel for the petitioner. The decision in Narayani's case (supra), a learned Judge of this Court has held that in the absence of any evidence to prove that the residue and sample were kept in the proper custody till the date of production of the same before the court, the chance of tampering with the sample taken and the residue seized cannot be ruled out. On that ground, in that case, the accused was acquitted. In Sasidharan's case (supra), a learned Judge of this Court has held that the prosecution has a duty to prove that it was the sample taken from the contraband liquor seized from the accused, which had reached the hands of the Chemical Examiner in a fool-proof condition. In the absence of such evidence, in that case, the accused was acquitted. In Lalitha's case (supra), a learned Judge of this Court held that in the absence of any evidence as to who took the sample, no reliance can be given to