From ancient times the falsification of documents and documents has been a major problem, because it was quite complicated to identify a person by his writing, which apparently does not say anything about the person, but with the development of technology and humanity there are more and more solutions of these problems. One of the solutions is to perform the graphoscopic examination with the help of which the author can easily and safely be determined after his writing or signature. This study is devoted to the tasks of forensic graphoscopic expertise and the problems that can be solved based on these analyzes performed in support of criminal prosecution and judicial bodies.