Solely on account of defects or shortcomings in investigation an accused is not entitled to get acquitted and, thus, lapse or omission (purposeful or otherwise) to carry out DNA profiling, by itself, cannot be permitted to decide the fate of a trial for the offence of rape especially, when it is combined with the commission of the offence of murder. Even if such a flaw had occurred in the investigation in a given case, the Court has still a duty to consider whether the materials and evidence available on record before it, is enough and cogent to prove the case of the prosecution. Further, in a case which rests on circumstantial evidence, the Court has to consider whether, despite such a lapse, the various links in the chain of circumstances forms a complete chain pointing to the guilt of the accused alone in exclusion of all hypothesis of innocence in his favour.Paras 45 to 47 and 53
[Veerendra v. State of M.P., (2022) 8 SCC 668]