Title: FEATURES OF DECISION OF QUESTIONS OF COMPLEX RESEARCH OF SIGNATURES
Abstract: In this article, some examples of case study research are considered in the examples from expert practice, namely: signatures and handwritten records of surnames and initials, serving as certificates of specific persons, in the locations of which there were no additional strokes that did not belong to.
 Purpose. The purpose of the article is to determine the necessity of a comprehensive handwriting and technical study of documents for objective, comprehensive and complete research and to provide a sound and correct conclusion for the questions posed before the examination.
 When considering the tasks, cognitive methods were used: description and observation; methods of analysis and synthesis.
 The above examples from expert practice and the presented studies prove the importance of strict observance of expert handwriting of all stages and levels of the expert method of investigation of signatures (short manuscripts); the need for complex research: handwriting and technical study of documents, in the case of identifying unnecessary strokes at the location of the studied handwriting objects; compulsory mastery of the expert-handwriter basic knowledge of technical study of documents.