18 person. PW-13 has admitted in his testimony that shirts of the same kind are easily available in the market. In such circumstances, it cannot be conclusively proved that the shirts are in any way unique to the 'appellants' shirt to the exclusion of everyone else. Therefore, the reliance placed with analysis of the shirt in the absence of any unique make thereof is improper. 38. The forensic evidence against the appellants to prove their presence at the scene of crime is insufficient. The findings of the hair analysis are also inconclusive. The report only concluded the specimen to the human hair. The same is not sufficient to substantiate the presence of the appellants. 39. The prosecution has alleged robbery as motive for the commission of the offence. It is sought to be sustained by the recovery of some cash and a pair of silver patti that has not been identified by any witness. The site plan panchanama shows that gold ornaments, pearl necklace, silver ornaments, etc. were left behind on the person of the deceased. It is not explained as to why appellants would intend to commit robbery but leave expensive ornaments behind. The entire motive of robbery is negated if these facts are considered as it seems implausible that persons with an intent to commit robbery would leave without precious ornaments that were on the person of the deceased.