The authors examine some problematic aspects of the practical application of the developed forensic methods and methodologies in law enforcement work. They discuss the possibilities of studying handwriting not only for identification, but also diagnostic purposes, for example, to determine the significance of information in certain parts of the handwritten text for the writer. In order to prove that such possibilities exist, the authors present a brief description and examples of the experimental use of the methodology that makes it possible to determine, relatively quickly, the attitude of the person to relevant circumstances and facts by analyzing experimental samples of handwriting obtained through copying, by hand, a specially prepared structured text.