The article describes the importance of examination for expert evaluation blow to the head. For expert examination are important all the information obtained from the crime scene. Blows to the head are the terms of forensic biomechanics extreme dynamic loads organism. Forensic biomechanics allows accurate quantification of tolerance of the organism to the external load. The article is a theoretical analysis of this variant. They are given all the important information that must be obtained from the examination. The authors provide typical questions that can be an expert opinion in the field of forensic biomechanics deal.