The article explores the problems of lexical and grammatical and specially legal interpretation of certain criminal procedural norms, in particular, those that regulate the victim's right to procedural communication in criminal proceedings. It is noted that the guiding principle of lawful interpretation is the principle of dialogical communication, where dialogue is understood as a dynamic and constructive way of thinking, creating, interpreting, leading from the analysis of legal and technical errors of legal norms to effective law-making and enforcement and developing in a spiral, because every dialogue must continue the previous ones and prepare the next ones.The notion of a lawful interpretation of a sectoral (criminal-procedural) legal norm is defined asa special independent form of official and informal interpretation, an actual need in which it exists before, during and after the application of the criminal-procedural norm, and is intended to ensure its interpretative evolution for the sake of effective legalization.It is emphasized that the importance and necessity of lexical and grammatical and special-legal interpretation is dictated by: the presence of gaps in sectoral (criminal-procedural) legislation; the existence of conflicts in sectoral (criminal procedural) legislation; availability of valuation concepts in sectoral (criminal procedural) legislation; the presence of issues related to legal and technical errors in sectoral (criminal) law; the presence of problems of the degree of legal regulation of the compositional construction of criminal procedural norms; the presence of issues related to the appeal to the linguistic structural elements of the criminal procedural norm.