In this paper, criminological issues of the circumstantial evidence have been elaborated. Majority of the activity in forensic sciences do not establish the main fact, but incidental facts. Particularly to the substantial issues belong i.a.: criminological tracks as circumstantial evidence; evidence meaning of chosen methods of the forensic identification; creating and the verification of forensic versions in the circumstantial evidence; the evaluation of the diagnostic value of the method and its influence on the process of commanding; evaluation of the value of the evidence opinion; establishing the plausibility of the main fact in leaning it for circumstantial evidence and the process of being transformed into the certainty of the procedural organ, underlying the procedural decision. The article presents judicial decisions, in which some evidences like fingerprints are often regarded as direct evidence.