Fingerprint evidence, when properly authenticated and unchallenged, has significant probative value and can be sufficient to ground a conviction for robbery even in the absence of eyewitness identification or evidence regarding the age of the fingerprints. Where an accused's fingerprints are found on vehicles used in multiple offences with a consistent modus operandi (robberies of persons who had just withdrawn cash from banks, committed by armed men using vehicles), and the accused provides no credible explanation for the presence of those fingerprints, the only reasonable inference consistent with the proved facts is that the accused participated in those offences. Evidence of modus operandi is admissible and relevant to prove identity where it demonstrates a systematic course of wrongful conduct, provided such evidence is used to establish identity rather than merely to prove propensity to commit crime. The coincidence of fingerprints on vehicles used in separate but similar robberies, even if separated by years, is explicable only on the basis of the accused's participation in both crimes, particularly where the pattern of offending is distinctive and consistent.