Criminal Trial – A conviction could be based solely on the basis of the evidence of a solitary witness, however, the testimony of such a witness is required to be found to be credible and trustworthy. It is also necessary to examine the testimony of such a witness critically – Circumstantial Evidence – the circumstances from which the conclusion of guilt is to be drawn should be fully established. The Court held that it is a primary principle that the accused ‘must be’ and not merely ‘may be’ proved guilty before a court can convict the accused. It has been held that there is not only a grammatical but a legal distinction between ‘may be proved’ and ‘must be or should be proved’. It has been held that the facts so established should be consistent only with the guilt of the accused, that is to say, they should not be explainable on any other hypothesis except the one where the accused is guilty. It has further been held that the circumstances should be such that they exclude every possible hypothesis except the one to be proved. It has been held that there must be a chain of evidence so complete as not to leave any reasonable ground for the conclusion consistent with the innocence of the accused and must show that in all human probabilities, the act must have been done by the accused-The suspicion, however strong it may be, cannot take the place of proof beyond reasonable doubt. An accused cannot be convicted solely on the ground of suspicion, no matter how strong it is. An accused is presumed to be innocent unless proved guilty beyond a reasonable doubt. (Para 21-22)