80. In cases where the victim of rape is alive and is in a position to testify in court, it may be possible for the prosecution to take a chance by not medically examining the accused. But in cases where the victim is dead and the offence is sought to be established only by circumstantial evidence, medical evidence assumes great importance. The failure of the prosecution to produce such evidence, despite there being no obstacle from the accused or anyone, will certainly create a gaping hole in the case of the prosecution and give rise to a serious doubt on the case of the prosecution. We do not wish to go into the question whether Section 53A is mandatory or not. Section 53A enables the prosecution to obtain a significant piece of evidence to prove the charge. The failure of the prosecution in this case to subject the appellant to medical examination is certainly fatal to the prosecution case especially when the ocular evidence is found to be not trustworthy. 81. Their failure to obtain the report of the Forensic Sciences Laboratory on the blood/semen stain on the salwar worn by the victim, compounds the failure of the prosecution. 43